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A Project of The Annenberg Public Policy Center

Club for Growth Action

The super PAC of the conservative Club for Growth, which advocates for limited government.

U.S. Chamber of Commerce

The world’s largest business organization, representing more than 3 million businesses.

Senate Leadership Fund

A Republican super PAC created by allies of Senate Majority Leader Mitch McConnell.

NextGen Climate Action Committee

NextGen Climate Action Committee is a liberal environmental advocacy organization founded by San Francisco billionaire Tom Steyer.

American Bridge 21st Century

A liberal super PAC that conducts opposition research to aid Democratic candidates and organizations.

America First Policies

A nonprofit launched by former Trump campaign aides to support President Trump’s agenda.