President Barack Obama is trying to become the third president in a row to win back-to-back terms, arguing to voters that his universal health care plan has made medical care affordable for all and that the economy is recovering, albeit slowly.
He faces GOP nominee Mitt Romney, a former venture capitalist who served one term as governor of Massachusetts and headed up the 2002 Olympics. He is touting his business acumen as essential for cutting the deficit and creating jobs.
Green Party candidate Jill Stein, a doctor, has put forth a Green New Deal that she says will create an economy that makes communities sustainable and healthy.
Libertarian Gary Johnson, the Republican governor of New Mexico from 1995 to 2003, has promised to cut military spending by 43% and submit a balanced budget his first year in office.