List of Canadian politicians who have crossed the floor

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See also List of Canadian politicians who have switched parties.

This is a list of Canadian politicians who have crossed the floor, in that they have changed party affiliation. These are Members of Parliament (MPs) unless otherwise noted.

Pre-confederation[edit]

1860s[edit]

1870s[edit]

1880s[edit]

1910s[edit]

As a result of the Conscription Crisis of 1917, Conservative Prime Minister Sir Robert Borden forms a Union Government in an attempt to win support across party lines. Opposition leader Sir Wilfrid Laurier refuses to support the new government but many of his MPs cross the floor to support the new government either as Unionist or Liberal-Unionist candidates in the Canadian federal election of 1917. Those loyal to Laurier run as Laurier-Liberals. Conversely, a number of Quebec Conservative MPs abandon Borden over the conscription issue and join the Liberals.

1920s[edit]

1930s[edit]

1950s[edit]

1960s[edit]

1970s[edit]

1980s[edit]

1990s[edit]

2000s[edit]

2010s[edit]

Other changes[edit]

The following list contains items that, while not generally considered crossing the floor, may be similar in nature.

  • In 1979, Pauline Jewett, who had been a Liberal MP from 1963 to 1965, returns to Parliament as a New Democrat.
  • February 2, 2004 - André Bachand, Joe Clark, and John Herron remain Progressive Conservative MPs (and are officially designated as Independent Progressive Conservatives) when the Progressive Conservative Party merges with the Canadian Alliance to form the Conservative Party of Canada. Herron runs as a Liberal candidate in the 2004 election but is unsuccessful.
  • In 2004, former NDP MP Chris Axworthy, who had resigned from Parliament in 1999, attempts to return to the House of Commons as a Liberal but is unsuccessful. He suffers a second defeat in 2006.
  • Former British Columbia NDP Premier Ujjal Dosanjh was elected as a Liberal MP in the 2004 federal election.
  • Former Ontario NDP Premier and MP Bob Rae announced his candidacy for the leadership of the federal Liberals in 2006, and was re-elected to Parliament as a Liberal in 2008.
  • Françoise Boivin, a former Liberal MP who was defeated in the 2006 election, left the Liberal Party in 2008 and ran as a candidate for the New Democratic Party in the 2008 election. She was subsequently elected as a New Democrat in 2011.
  • Jean Charest, the former Premier of Quebec from 2003-2012 and leader of the Quebec Liberal Party from 1998-2012 was also the leader of the federal Progressive Conservative Party from 1995-1998 and a Progressive Conservative MP prior to that.
  • Thomas Mulcair, the leader of the New Democratic Party since 2012 was a Member of the National Assembly of Quebec for the Quebec Liberal Party from 1994-2007. He also served in the cabinet of former premier Jean Charest from 2003-2007.
  • NDP MP Glenn Thibeault (Sudbury) resigned his seat in 2014 in order to be appointed the Ontario Liberal Party's candidate in a provincial by-election.

See also[edit]

External links[edit]