Common Cause
The group Common Cause, which was founded in 1970, describes itself as "more than 1 million powerful, fearless, ordinary Americans working together to build a democracy that works for us all."
The Sierra Club is an environmental group founded by a prominent early conservationist, John Muir, in 1892.
The American Legion is a military veterans organization chartered in 1919.
The Heritage Foundation is a politically conservative "think tank" institution, founded in 1973.
