21st Century Democrats is a political organization founded by Senator Tom Harkin, commentator Jim Hightower and Congressman Lane Evans to help elect "progressive" or "populist" candidates.
21st Century Democrats started out relatively small but has quietly grown in size and significance in the last few election cycles." In 2004 election cycle, according to the Political Money Line, it was the 13th largest Political Action Committee (PAC) in the United States raising nearly $7 Million. Among progressive ideological PACs, it ranked fourth behind America Coming Together, EMILY's List, and MoveOn.org.
Unlike traditional PACs, 21st Century Democrats focuses on recruiting, training, and hiring field organizers to organize grassroots campaigns on behalf of candidates for local offices, statewide office, and even targeted presidential swing states.[3] The group has ties to Democracy for America, which grew out of Howard Dean's presidential campaign.
http://en.wikipedia.org/wiki/21st_Century_Democrats