Top 10 super PAC donors of 2013

Rank Name Amount Political leaning
1 Thomas Steyer $11.1 million Democratic
2 Michael Bloomberg $8.7 million Independent
3 Democratic Governors Association $7.6 million Democratic
4 National Education Association $5.6 million Democratic
5 United Brotherhood of Carpenters and Joiners $3.8 million Democratic
6 Bob Perry $3.1 million Republican
7 AFL-CIO $2.4 million Democratic
8 AFSCME $2.1 million Democratic
9 John Jordan $1.7 million Republican
10 Mostyn Law Firm & Amber Mostyn $1.4 million Democratic

Source: Center for Public Integrity analysis of Federal Election Commission records