Republican-leaning group chaired by former New York Gov. George Pataki.
Conservative-leaning group represented by a lawyer in the Citizens United case.
Large federation of labor unions is strongly Democratic.
Pro-business group whose president is the former head of the New Hampshire Republican Party.
Union-funded group supporting Minnesota Democratic gubernatorial nominee Mark Dayton.
Pro-business, corporate-funded group backing Republican candidate Tom Emmer for governor of Minnesota.
Political action committee supporting Democratic candidates directly and through grassroots campaigns.
Labor union representing 2.2 million health care, government and property management workers. Leans Democratic.
Lobbying group representing more than 3 million businesses. Leans Right-center.
Focused on electing conservative Republicans to state offices.