Catholic Church and politics in the United States
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Members of the Catholic Church have been active in the politics of the United States since the mid 19th century. The U.S. has never had an important religious party (unlike Europe and Latin America). There has never been an American Catholic religious party, either local, state or national.
In 1776 Catholics comprised less than 1% of the population of the new nation, but their presence grew rapidly after 1840 with immigration from Germany, Ireland, Italy, Poland and elsewhere in Catholic Europe from 1840 to 1914, and also from Latin America in the 20th century. Catholics now comprise 25% to 27% of the national vote, with over 68 million members today. 85% of today's Catholics report their faith to be "somewhat" to "very important" to them.
From the mid-19th century down to 1964 Catholics were solidly Democratic, sometimes at the 80%-90% level. The Catholics formed a core part of the New Deal Coalition, with overlapping memberships in the Church, labor unions, and big city machines, and the working class, all of which promoted liberal policy positions in domestic affairs and anti-communism during the Cold War. Since the election of a Catholic President in 1960, Catholics have split about 50-50 between the two major parties in national elections.
With the decline of unions and big city machines, and with upward mobility into the middle classes, Catholics have drifted away from liberalism and toward conservatism on economic issues (such as taxes). Since the end of the Cold War, their strong anti-Communism has faded in importance. On social issues the Catholic Church takes strong positions against abortion and same-sex marriage and has formed coalitions with Protestant evangelicals.
Currently there are 25 Catholics in the United States Senate, 16 Democrats, 9 Republicans, and 134 (out of 435) Catholics in the United States House of Representatives, including the current House Speaker John Boehner. In 2008, Joe Biden became the first Catholic to be elected Vice President of the United States.
Religious tensions were major issues in the presidential elections of 1928 when the Democrats nominated Al Smith, a Catholic who was defeated, and in 1960 when the Democrats nominated John F. Kennedy, a Catholic who was elected. For the next three elections, a Catholic would be nominated for the vice presidency by one of the two major parties (Bill Miller in 1964, Ed Muskie in 1968, Tom Eagleton and then Sarge Shriver in 1972), but the ticket would lose. Geraldine Ferraro would continue the tradition in 1984, until it was broken in 2008. A Catholic, John Kerry, lost the 2004 election to incumbent George W. Bush, a Methodist, who may have won the Catholic vote. 2012 was the first election where both major party vice presidential candidates were Catholic, Joe Biden and Paul Ryan.
19th century 
Before 1840 Catholics constituted a small minority and therefore played a relatively minor role in early American history. Only in Maryland were there significant numbers, and Baltimore became an early Catholic center. During the American Revolution until the late 18th century, about 1% of the American population (about 30,000) was Catholic. Still, Catholics were among the Founding Fathers and part of the First Congress; Daniel Carroll serving Maryland's 6th congressional district, and Charles Carroll of Carrollton serving as the first senator from Maryland. Presidential candidates did not seek Catholic votes until Andrew Jackson and Henry Clay did so in 1832.
Wave of European immigration 
The role of Catholics in American culture and politics changed dramatically as a result of the mass immigration of Catholics from Europe, especially Germany and Ireland. By 1840, there were about 600,000 Catholics in the United States. In the 1840s, 200,000 Irish immigrated to escape poverty. The Irish Potato Famine in 1845 caused the Irish population in America to reach 962,000, the number doubling in the next ten years. Even larger numbers of immigrants arrived from traditionally Catholic regions of Germany and other parts of Europe. To the extent that these new arrivals remained inside ethnic communities, they typically joined the local Catholic that through the local diocese was in communion with Rome; how many cut their ties with the Catholic Church is a matter of speculation. The Irish Catholics took controlling positions in the Catholic Church, labor unions, and Democratic organizations in the big cities, thus forming overlapping centers of strength. The sudden new arrival of so many Catholics, charges of political corruption, and fears of papal interference caused anti-Catholicism to grow, including the short-lived Know Nothings party in the 1850s which demanded a purification of politics from Catholic influence.
Many Catholics served in the Civil War armies, both North and South, and the bishops rejected the antiwar and anti-draft sentiments of some members. The rapid rise of the Irish out of poverty, and the continued growth in membership, especially in industrial and urban areas, made the church the largest denomination in the U.S. Distrusting public schools dominated by Protestants, Catholics built their own network of parochial elementary schools (and, later, high schools), as well as colleges, and public funding for parochial schools was a controversial issue. As the Bennett Law episode in 1890 in Wisconsin demonstrated, Catholics were willing to cooperate politically with Protestants to protect their parochial schools. A distinct Catholic vote existed, however; in the late 19th century, 75% of Irish, German, and French Catholics in America voted for Democratic presidential candidates.
Labor union movement 
The Catholic Church exercised a prominent role in shaping America's labor movement. From the onset of significant immigration in the 1840s, the Church in the United States was predominantly urban, with both its leaders and congregants usually of the laboring classes. Over the course of the second half of the nineteenth century, nativism, anti-Catholicism, and anti-unionism coalesced in Republican politics, and Catholics gravitated toward unions and the Democratic Party.
The Knights of Labor was the earliest labor organization in the United States, and in the 1880s, the was the largest labor union in the United States. and it is estimated that at least half its membership was Catholic (including Terence Powderly, its president from 1881 onward).
In Rerum Novarum (1891), Pope Leo XIII criticized the concentration of wealth and power, spoke out against the abuses that workers faced and demanded that workers should be granted certain rights and safety regulations. He upheld the right of voluntary association, specifically commending labor unions. At the same time, he reiterated the Church’s defense of private property, condemned socialism, and emphasized the need for Catholics to form and join unions that were not compromised by secular and revolutionary ideologies.
Rerum Novarum provided new impetus for Catholics to become active in the labor movement, even if its exhortation to form specifically Catholic labor unions was widely interpreted as irrelevant to the pluralist context of the United States. While atheism underpinned many European unions and stimulated Catholic unionists to form separate labor federations, the religious neutrality of unions in the U.S. provided no such impetus. American Catholics seldom dominated unions, but they exerted influence across organized labor. Catholic union members and leaders played important roles in steering American unions away from socialism.
20th century 
By 1900, Catholics represented 14 percent of the total U.S. population, soon became the single largest religious denomination in the country. Still, Catholics did not hold many high offices in politics. Of the first 54 justices on the United States Supreme Court, one was Catholic, Roger B. Taney, appointed in 1836.
Bishops' Program of Social Reconstruction 
Following World War I, many hoped that a new commitment to social reform would characterize the ensuing peace. The Council saw an opportunity to use its national voice to shape reform and in April 1918 created a Committee for Reconstruction. John A. Ryan wrote the Bishops' Program of Social Reconstruction. Combining Progressive thought and Catholic theology, Ryan believed that government intervention was the most effective means of affecting positive change for his church as well as working people and the poor.
On February 12, 1919, the National Catholic War Council issued the "Bishops' Program of Social Reconstruction," through a carefully planned public relations campaign.
The Program received a mixed reception both within the Church and outside it. The National Catholic War Council was a voluntary organization with no canonical status. Its ability to speak authoritatively was thus questioned. Many bishops threw their support behind the Program, but some, like Bishop William Turner of Buffalo, and more notably, William Henry O'Connell of Boston, opposed it. O'Connell believed some aspects of the plan smacked too much of socialism. Response outside the Church was also divided: labor organizations backing it, for example, and business groups criticizing it.
Rejection of compulsory public education 
After World War I, some states concerned about the influence of immigrants and "foreign" values looked to public schools for help. The states drafted laws designed to use schools to promote a common American culture.
In 1921, the Ku Klux Klan arrived in Oregon and quickly attracted as many as 14,000 members, establishing 58 klaverns by the end of 1922. Given the small population of non-white minorities outside Portland, the Oregon Klan directed its attention almost exclusively against Catholics, who numbered about 8% of the population.
In 1922, the Masonic Grand Lodge of Oregon sponsored a bill to require all school-age children to attend public schools. With support of the Klan and Democratic Governor Walter M. Pierce, endorsed by the Klan, the Compulsory Education Act was passed by a vote of 115,506 to 103,685. Its primary purpose was to shut down Catholic schools in Oregon, but it also affected other private and military schools. The constitutionality of the law was challenged in court and ultimately struck down by the Supreme Court in Pierce v. Society of Sisters (1925) before it went into effect.
The law caused outraged Catholics to organize locally and nationally for the right to send their children to Catholic schools. In Pierce v. Society of Sisters (1925), the United States Supreme Court declared the Oregon's Compulsory Education Act unconstitutional in a ruling that that has been called "the Magna Carta of the parochial school system."
The fundamental theory of liberty upon which all governments in this Union repose excludes any general power of the State to standardize its children by forcing them to accept instruction from public teachers only. The child is not the mere creature of the State; those who nurture him and direct his destiny have the right coupled with the high duty, to recognize, and prepare him for additional duties.
Catholic Worker Movement 
The Catholic Worker movement began as a means to combine Dorothy Day's history in American social activism, anarchism, and pacifism with the tenets of Catholicism (including a strong current of distributism), five years after her 1927 conversion. The group started with the Catholic Worker newspaper, created to promote Catholic social teaching and stake out a neutral, pacifist position in the war-torn 1930s. This grew into a "house of hospitality" in the slums of New York City and then a series of farms for people to live together communally. The movement quickly spread to other cities in the United States, and to Canada and the United Kingdom; more than 30 independent but affiliated CW communities had been founded by 1941. Well over 100 communities exist today, including several in Australia, the United Kingdom, Canada, Germany, The Netherlands, the Republic of Ireland, Mexico, New Zealand, and Sweden.
National Catholic Welfare Conference 
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Historian John McGreevey notes: "Priests across the country in the 1930s encouraged their parishioners to join unions, and some like Pittsbugh's Charles Rice, Detroit's Frederick Siedenberg, and Buffalo's Monsignor John P.Boland, served on regional labor boards and played key roles in workplace negotiations." The Catholic Worker Movement and Dorothy Day grew out of the same impetuses to put Catholic social teaching into action.
Catholic Conference on Industrial Problems 
The Catholic Conference on Industrial Problems (1923–1937) was conceived by Fr. Raymond McGowan as a way of bringing together Catholic leaders in the fields of theology, labor, and business, with a view to promoting awareness and discussion of Catholic social teaching. Its first meeting was held in Milwaukee. While it was the venue for important discussions during its existence, its demise was due in part to lack of participation by business executives who perceived the dominant tone of the group as anti-business.
Party affiliation 
Before the 1960s, Catholics were seen as staunch Democrats. The Democratic Party ran Al Smith, the first Catholic presidential candidate by a major party, in 1928, and, except when the ticket was headed by a Southern candidate, has nominated a Catholic for President or Vice President John F. Kennedy in every election since 1960 except for 1988 (where a Greek Orthodox, Michael Dukakis, was the presidential nominee).
Since the 1960s, the Catholic vote has come to reflect the nation as a whole instead of being predominantly Democratic. In the 60s and early 70s, a number of Catholics and Southern whites abandoned their traditional affiliation with the Democratic party and began to support the Republican party. This shift is evidenced by the fact that Nixon received 33% of the Catholic vote in the 1968 election compared to 52% in 1972. As a group, Catholics represented a quarter of the nation's electorate and were now one of the nation's largest swing groups. Both parties began to aggressively woo both the Catholic voters. Although the Catholic hierarchy could not dictate who Catholics voted for, they did have a substantial influence over the faithful in their dioceses. Politicians were aware that the bishops could direct significant time, energy and money to support the issues that were important to them. From their perspective, the bishops were eager to regain some of the influence that their predecessors had wielded in the earlier part of the 20th century.
In his successful 1980 campaign against Jimmy Carter, Ronald Reagan won about half of the Catholic vote. "Reagan Democrats", many of them blue-collar Catholics, comprised 25% of the Democrats who voted for Reagan, and formed an important part of his support in 1984 as well. Despite Catholic Geraldine Ferraro's presence on the Democratic ticket as Walter Mondale's vice-presidential running mate that year Reagan won 54 to 61% of the Catholic vote, only slightly different from the overall 59%. Although the majority of Catholics in 1984 remained Democrats, compared to 1980 Catholic votes switched to Reagan at about the same level as most Protestant groups. Reagan's vice president George H. W. Bush won about the same number of votes as Michael Dukakis, making 1988 the third presidential election in a row in which Catholics failed to support the Democratic candidate as they traditionally did.:186-187,191-192,194
Although about one third of Catholics voted for Bush's reelection in 1992, most Catholic defectors switched to independent Ross Perot, not the successful Democrat Bill Clinton. Unlike previous elections (such as in 1972, when George McGovern's Catholic support was eight percentage points higher than overall) the Catholic vote was not more Democratic than the overall electorate, but split almost identically to it. The trend away from a Democratic dominance of the Catholic vote continued in 1994, when for the first time in history Democrats did not receive a majority of Catholic votes in elections for the House of Representatives; as with 1992, the Catholic vote split resembled that of the overall electorate. This trend reversed slightly in 1996, when Clinton's share of Catholics was four percentage points ahead of overall, and they comprised about half of the margin between him and the unsuccessful challenger Robert Dole. The 1990s ended, however, with Catholics as "the largest swing vote in American politics.":200-201,207,218
Their party independence continued into 2000, and Catholics became the large religious grouping that most closely reflected the total electorate, ahead of mainline Protestants. 50% of Catholics voted for Al Gore versus 47% for George W. Bush in the very close 2000 election. 52% of Catholics voted for Bush's successful reelection compared to 47% for the Catholic John Kerry in 2004, versus 51% to 48% overall. Barack Obama, who chose the Catholic Joe Biden as his running mate, received 54% of the Catholic vote in 2008 compared to John McCain's 45%, close to the overall 52% to 46%. In 2012 Obama and Biden faced Mitt Romney and the Catholic Paul Ryan. Obama's 50% compared to Romney's 48% matched their shares of the overall vote.
Presidential elections 
This chart shows the Democrat/Republican split of the Catholic vote in elections since 1948. Catholics and cases where the Catholics voted for the national winner are in bold.
|Year||Election Winner||Party||Catholic Vote %D - %R||Election Runner-up|
|1948||Harry Truman / Alben Barkley||Democratic||65-35||Thomas Dewey / Earl Warren|
|1952||Dwight D. Eisenhower / Richard Nixon||Republican||56-44/52-48/51-49||Adlai Stevenson / John Sparkman|
|1956||Dwight D. Eisenhower / Richard Nixon||Republican||51-49/46-54/45-55||Adlai Stevenson / Estes Kefauver|
|1960||John F. Kennedy / Lyndon B. Johnson||Democratic||78-22/82-18||Richard Nixon / Henry Cabot Lodge|
|1964||Lyndon B. Johnson / Hubert Humphrey||Democratic||76-24/79-21/78-22||Barry Goldwater / William Miller|
|1968||Richard Nixon / Spiro Agnew||Republican||59-33/56-37/55-37||Hubert Humphrey / Edmund Muskie|
|1972||Richard Nixon / Spiro Agnew||Republican||48-52/39-59/44-54/37-63||George McGovern / Ted Eagleton, Sargent Shriver|
|1976||Jimmy Carter / Walter Mondale||Democratic||57-41/54-44/56-44||Gerald Ford / Bob Dole|
|1980||Ronald Reagan / George H. W. Bush||Republican||46-47/41-50/42-49/42-46/47-50:185||Jimmy Carter / Walter Mondale|
|1984||Ronald Reagan / George H. W. Bush||Republican||39-61/46-54/45-54/44-56||Walter Mondale / Geraldine Ferraro|
|1988||George H. W. Bush / Dan Quayle||Republican||51-49/52-47/47-52/52-48||Michael Dukakis / Lloyd Bentsen|
|1992||Bill Clinton / Al Gore||Democratic||47-35/50-30/46-36/44-35:202||George H. W. Bush / Dan Quayle|
|1996||Bill Clinton / Al Gore||Democratic||55-35/55-37/53-37||Bob Dole / Jack Kemp|
|2000||George W. Bush / Dick Cheney||Democratic||52-46/50-49/50-47||Al Gore / Joe Lieberman|
|2004||George W. Bush / Dick Cheney||Republican||52-48/51-48/47-52||John Kerry / John Edwards|
|2008||Barack Obama / Joe Biden||Democrat||53-47/57-43/54-45||John McCain / Sarah Palin|
|2012||Barack Obama / Joe Biden||Democrat||50-48||Mitt Romney / Paul Ryan|
1928 Presidential election 
In 1928, Al Smith became the first Roman Catholic to gain a major party's nomination for President. His religion became an issue during the campaign and was one of the factors in his loss. Many feared that he would answer to the pope and not the constitution. Another major controversial issue was the continuation of Prohibition. Smith was personally in favor of relaxation or repeal of Prohibition laws despite its status as part of the nation's Constitution, but the Democratic Party split north and south on the issue. During the campaign Smith tried to duck the issue with noncommittal statements. He was also criticized for being a drunkard because of the stereotypes placed on Irish Catholics of the day.
Smith swept the entire Catholic vote, which had been split in 1920 and 1924, and brought millions of Catholics to the polls for the first time, especially women. The fact that Smith was Catholic garnered him support from immigrant populations in New England, which may explain his narrow victories in traditionally Republican Massachusetts and Rhode Island, as well as his narrow 2% loss in New York (which previous Democratic presidential candidates had lost by double digits).
1960 Presidential election 
Religion became a divisive issue during the presidential campaign of 1960. Senator John F. Kennedy of Massachusetts was vying to become the nation's first Catholic president. A key factor that was hurting Kennedy in his campaign was the widespread prejudice against his Roman Catholic religion; some Protestants believed that, if he were elected President, Kennedy would have to take orders from the Pope in Rome. When offered the opportunity to speak before a convention of Baptist ministers, decided to try to put the issue to rest.
To address fears that his Roman Catholicism would impact his decision-making, John F. Kennedy famously told the Greater Houston Ministerial Association on September 12, 1960, "I am not the Catholic candidate for President. I am the Democratic Party's candidate for President who also happens to be a Catholic. I do not speak for my Church on public matters — and the Church does not speak for me." He promised to respect the separation of church and state and not to allow Catholic officials to dictate public policy to him. Kennedy also raised the question of whether one-quarter of Americans were relegated to second-class citizenship just because they were Roman Catholic.
Even so, it was widely believed after the election that Kennedy lost some heavily Protestant states because of his Catholicism. His address did not please everyone: many non-Catholics remained unconvinced that a Catholic could be president without divided loyalties; and many Catholics thought he conceded too much in his profession of belief in an "absolute" separation of church and state. The speech is widely considered to be an important marker in the history of Catholicism (and anti-Catholicism) in the United States.
Kennedy went on to win the national popular vote over Richard Nixon by just one tenth of one percentage point (0.1%) - the closest popular-vote margin of the 20th century. In the electoral college, Kennedy's victory was larger, as he took 303 electoral votes to Nixon's 219 (269 were needed to win). There was a “narrow consensus” among the experts that Kennedy had won more votes than he lost as a result of his Catholicism, as Catholics rallied to Kennedy as an affirmation of their religion and their right to have a Catholic president.
Representation in government 
Today, Catholics represent 30% of Congress.
Supreme Court 
As of 2009[update], the Supreme Court has a Catholic majority. Catholics represent two-thirds of the Justices on the Supreme Court. In the early 1980s, there was one Catholic justice. This changed in the mid 1980s when President Ronald Reagan nominated Antonin Scalia and Anthony Kennedy to the court, both Catholic. The first President Bush nominated Clarence Thomas (a Catholic who at the time of his appointment was attending Episcopalian services, though he has since become an active Catholic) along with David Souter, an Episcopalian. The second President George W. Bush appointed John Roberts and Samuel Alito, both Catholics. President Barack Obama appointed Catholic Sonia Sotomayor.
The four Catholic Supreme Court justices nominated in the last decade have become reliable votes for abortion restriction. In Webster v. Reproductive Health Services (1989), City of Akron v. Akron Center for Reproductive Health (1990), Hodgson v. Minnesota (1990), and Rust v. Sullivan (1991), Scalia and Kennedy upheld the restrictions in question .
Present day 
Religion plays a part in American politics. The emergence of gay rights, abortion rights, and current immigration issues have had an impact on voting patterns. Both gay rights, abortion rights, and even the “right to die” have not only tested the values of the Catholic Church, but have united evangelicals and Catholic conservatives.
According to Dr. John Green of University of Akron, "There isn't a Catholic vote anymore; there are several Catholic votes." A survey conducted by the Gallup organization in 2009 revealed that, despite the opposition of the Church to abortion and embryonic stem-cell research, there is no significant difference between the opinions of Catholics and non-Catholics on these questions.
Catholic Answers voting guides 
In 2004, Catholic Answers, a private, conservative Catholic group with no official connection to the USCCB, published its Voter's Guide for Serious Catholics. It also published Voter's Guide for Serious Christians for non-Catholics. In 2006, it revamped the guides and published them on its Catholic Answers Action web site.
LGBT rights 
The Roman Catholic Church defines marriage as a covenant "by which a man and a woman establish between themselves a partnership of the whole of life and which is ordered by its nature to the good of the spouses and the procreation and education of offspring." The church teaches that "homosexual acts are intrinsically disordered. They are contrary to the natural law. They close the sexual act to the gift of life. They do not proceed from a genuine affective and sexual complementarity. Under no circumstances can they be approved." Nevertheless, homosexuals "must be accepted with respect, compassion, and sensitivity. Every sign of unjust discrimination in their regard should be avoided." Some Roman Catholics take this to mean that voting in favor of "benefits for lifelong partners" is a compassionate act, whereas others see voting in favor of "benefits for lifelong partners" as merely promoting behavior contrary to natural law. According to a 2009 survey, 59% of practicing Catholics oppose same-sex marriage, while those who are not practicing support it by 51%. Cardinal John Joseph O'Connor was an outspoken critic of homosexuality; other prominent Catholics who were outspoken critics have included John Boehner, David Vitter, Paul Ryan, Newt Gingrich, Rick Santorum, Bobby Jindal, Jeb Bush, Bob McDonnell, Marco Rubio, Michael Steele, Donald Carcieri, Sam Brownback, and Democrat Tim Kaine. Catholics Rudolph Giuliani, Chris Christie, and Bob Casey, Jr. have supported gay rights and civil unions but not same-sex marriage. Liberal Catholics have generally supported repeal of sodomy laws that called for jail time for homosexuals and Employment Non-Discrimination laws that would prohibit large employers from firing workers because of sexual orientation. Conservative Catholics have taken the contrary view, rejecting claims that these are examples of "unjust discrimination" and that because homosexuality is an intrinsic evil, it must always be opposed.
In accordance with its teachings, the Catholic Church opposes abortion in all circumstances and often leads the national debate on abortion. The Roman Catholic Church has been a fierce opponent of liberalized abortion laws and has organized political resistance to such legislation in several Western countries.
Before the Roe v. Wade decision making abortion legal in the United States, the pro-life movement in the United States consisted of elite lawyers, politicians, and doctors, almost all of whom were Catholic. The only coordinated opposition to abortion during the early 1970s came from the United States Conference of Catholic Bishops and the Family Life Bureau, also a Catholic organization. Mobilization of a wide-scale pro-life movement among Catholics began quickly after the Roe v. Wade decision with the creation of the National Right to Life Committee (NRLC). The NRLC also organized non-Catholics, eventually becoming the largest pro-life organization in the United States. the pro-life wing of the Democratic Party was also led by Catholic Robert P. Casey, Sr. other pro-life Democrats including, Sargent Shriver, Raymond Flynn and Bob Casey, Jr.
Some Catholics have raised questions of pro-choice politicians receiving communion. Such cases have typically involved a bishop threatening to deny a Catholic politician communion, though in some cases excommunication has been suggested and in others a bishop has instructed a politician not to take communion. The first such case was that of Lucy Killea, though such threats have subsequently been made in national elections.
In 2004, Cardinal Joseph Ratzinger, then-prefect of the Congregation for the Doctrine of the Faith, instructed American bishops in a confidential memorandum that Communion must be denied to Catholic politicians who support legal abortion. However, Cardinals O'Malley, Egan, McCarrick, Wuerl, Mahoney and George have said they would not refuse communion to a person in public life who is pro-choice. Cardinal Burke and Charles Chaput, Arcbishop of Philadelphia, have made statements against giving communion but neither has ever refused someone.
During the 2004 presidential campaign, a few bishops called for Catholic politicians who voted for Kerry to be barred from receiving Communion. This tactic provoked a negative reaction which caused the Catholic Church to adopt a different approach for the 2008 election. The new message was compiled into a brochure titled "Forming Consciences for Faithful Citizenship," which "emphasized that issues involving 'intrinsically evil' actions could not be equated morally with others," according to the Times. The brochure cited abortion as the "prime example," but also mentioned euthanasia, torture, genocide, unjust war and racism.
In the 2008 U.S. presidential campaign, as many as 89 Catholic bishops proclaimed that Catholics should make abortion their defining issue in the election.
In November 2009, Rhode Island Rep. Patrick Kennedy disclosed that Bishop Thomas Tobin had ordered priests in the diocese not to give him communion because of Kennedy's position in favor of unrestricted abortion. Other bishops, archbishops and cardinals however have not denied communion to pro-choice politicians.
Some Catholic commentators viewed the 54-45% majority of Catholic voters choosing Obama in the 2008 presidential election as a repudiation of certain bishops who had warned that voting for Obama, a pro-choice candidate, could constitute a grave sin. A dispute within the Church arose when the University of Notre Dame, a Catholic institution, named President Barack Obama commencement speaker at its 2009 graduation and bestowed an honorary doctorate degree on him. The invitation drew intense criticism from conservative Catholics and some conservative members of the church hierarchy because of Obama's policies in favor of legal and funding abortion.
Polling shows an increase in the number of Catholics classifying themselves as pro-life; a 2009 poll showed a 52% majority identifying as pro-life.
Birth control 
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In 1948, Archbishop Richard Cushing campaigned against a Massachusetts referendum to loosen the state's ban on birth control. While the referendum failed, "deployment of the Church’s political muscle," according to historian Leslie Tentler, offended non-Catholics and led Cushing to relax his position when the issue was debated again in the 1960s.
In 2012, when the Obama administration proposed regulations that required employer-provided health insurance plans to cover contraception, Catholic companies such as affiliated universities and EWTN Broadcasting, which believed they should be exempt from the law, sued the government, while Catholic religious leaders campaigned against it in church. The regulation was later altered so that an employee of a religious institution which did not wish to provide coverage for reproductive health care could seek it directly from the insurer at no additional cost. Catholic religious authorities continued to oppose the plan, while the Catholic Health Association supported it.
The immigration debate has also changed relations between Republicans and Roman Catholic voters. Roughly 30% of the Roman Catholic population is Hispanic and that percentage continues to rise steadily. Pope John Paul II advocated that countries should accommodate people fleeing from economic hardship if they are able.
The Roman Catholic leadership in the U.S. has opposed restrictions on immigration. For example, Cardinal Raymond Burke has been involved in rallies to allow undocumented workers a chance at citizenship. By welcoming migrant workers, many of whom are Catholic, Burke says, "we obey the command of Our Lord, who tells us that when we welcome the stranger, we welcome Christ Himself."
In 2006, Cardinal Roger Mahony controversially announced that he would order the clergy and laity of the Archdiocese of Los Angeles to ignore H.R. 4437 if it were to become law. Cardinal Mahony personally lobbied senators Barbara Boxer and Dianne Feinstein to have the Senate consider a comprehensive immigration reform bill, rather than the enforcement-only bill that passed the House of Representatives. Cardinal Mahony also blamed the Congress for the illegal immigration crisis due to their failure to act on the issue in the previous 20 years, opposed H.R. 4437 as punitive and open to abusive interpretation, and supported S. 2611.
See also 
- Roman Catholicism in the United States
- History of Roman Catholicism in the United States
- United States Conference of Catholic Bishops (USCCB)
- Christianity in the United States
- Christianity and politics
- Political catholicism
- Third Way (centrism)
- Catholic Democrats
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“...the Catholic share of the U.S. adult population has held fairly steady in recent decades, at around 25%. What this apparent stability obscures, however, is the large number of people who have left the Catholic Church. Approximately one-third of the survey respondents who say they were raised Catholic no longer describe themselves as Catholic. This means that roughly 10% of all Americans are former Catholics. These losses, however, have been partly offset by the number of people who have changed their affiliation to Catholicism (2.6% of the adult population) but more importantly by the disproportionately high number of Catholics among immigrants to the U.S.” (p. 7)."
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