Members include: ACORN, AFSCME, Americans United for Change, Campaign for America's Future, Center for American Progress Action Fund, MoveOn.org, National Council of La Raza, National Education Association, Planned Parenthood Federation of America, Service Employees International Union, United Food and Commercial Workers, and USAction.

NPR: Profile: Health Care for America Now

The National Rifle Association, MoveOn.org, Planned Parenthood and the National Right to Life Committee are all 501(c)(4)s.

FORBES: The Democrats' Little Tax Secret

Asking House Republicans to break their campaign promise to oppose new taxes is like asking the National Rifle Association to support gun control, or Planned Parenthood to back abortion restrictions.

FORBES: Connect