The 2016 likely nominee for President of the United States is Jill Stein.
In 2000, Ralph Nader was on the presidential ballot of the Iowa Green Party and received over 2% of the vote, qualifying the party for ballot access. Two years later, Jay Robinson ran as the Green Party nominee for Governor and received 1.43% and the party lost ballot access. In 2004, neither statewide candidate (David Cobb for President nor Daryl A. Northrop for U.S. Senate) received the minimum 2% of the vote. In 2006, Wendy Barth, a software developer and peace activist, ran for Governor as the Iowa Green Party nominee. She finished in third place of five ballot qualified candidates with .75% of the vote. Barth ran two years later for Iowa's second congressional district, again finishing third. She gained 2.18% of the vote.