Jill Stein, a doctor and activist from Massachusetts, is running for the Green Party nomination for President of the United States. Stein is the frontrunner for the party's nomination, running against comedian Roseanne Barr and veteran Green Party activists Kent Mesplay and Harley Mikkelson. Stein's campaign, headed up by Wisconsin native Ben Manski, is focusing on getting enough delegates in each state to win the party's nomination at the July 2012 Green Party convention in Baltimore and on securing November ballot lines in all 50 states.
Jill Stein is a physician, author, environmental health advocate, and mom. She has been particularly active on the issue of toxic chemicals and their effects on children and on campaign finance reform. She ran for Massachusetts' Green-Rainbow Party for Governor in 2002, for State Representative in 2004, and for Secretary of State in 2006.