Who Owns Congress?

Fat Cats United: 10 Biggest 527 Groups

How much money has the College Republican National Committee raised so far this year? How about the SEIU?

Read also: The rest of this special report, a note on sourcing, and MoJo's daily political coverage.

527 groups, which can collect unlimited donations, raised $506 million in 2008. They've already raised $236 million for this fall's election—and it's not even a presidential year. Here are the 10 biggest:

527 COMMITTEE / POLITICAL LEANING

TOTAL RAISED

TOP DONOR / AMOUNT

American Solutions for Winning the Future
Conservative/Republican

$17.2 million

Crow Holdings
$350,000

Service Employees International Union
Liberal/Democratic

$6.4 million

SEIU
$6.4 million

America Votes
Liberal/Democratic

$6.4 million

Friends of America Votes
$2.4 million

Citizens United
Conservative/Republican

$5.8 million

Self-employed donors
$61,320

College Republican National Committee
Conservative/Republican

$4.5 million

John Templeton Foundation
$450,100

EMILY's List
Liberal/Democratic

$4 million

Akonadi Foundation/Newsweb
$250,000 each

Carly for California
Conservative/Republican

$3.6 million

Carly Fiorina Enterprises
$2.5 million

International Brotherhood of Electrical Workers
Liberal/Democratic

$2.7 million

IBEW
$1.2 million

ActBlue
Liberal/Democratic

$2.5 million

JPMorgan Chase
$39,848

Mid-Atlantic Leadership Fund
Liberal/Democratic

$2.4 million

Democratic Governors Association
$1.45 million