The ongoing myth that there are only a few progressives in the Congress is belied by this fact.
From wiki:
The Congressional Progressive Caucus (CPC) is the single largest partisan caucus in the United States House of Representatives, and works together to advance progressive issues and causes.
The CPC was founded in 1991 by the independent Congressman Bernie Sanders of Vermont, who remains a member as Senator. It represents about a third of the House Democratic Caucus (with 71 members). Of the twenty standing committees of the House, eleven are chaired by members of the CPC.
According to their website, the CPC advocates "universal access to affordable, high quality healthcare," fair trade agreements, living wage laws, the right of all workers to organize into labor unions and engage in strike actions and collective bargaining, the abolition of significant portions of the USA PATRIOT Act, the legalization of gay marriage, strict campaign finance reform laws, a complete pullout from the war in Iraq, a crackdown on free trade and corporate welfare, an increase in income tax on the wealthy, tax cuts for the poor, and an increase in social welfare spending by the federal government.
http://en.wikipedia.org/wiki/Congressional_Progressive_Caucus