NEW YORK (TheStreet) -- U.S. House Majority Leader Eric Cantor suffered a stunning defeat in Tuesday's Republican primary, losing to a Tea Party challenger, Dave Brat, a professor at Randolph-Macon College, a small liberal arts school in Ashland, Va.
The House Majority Leader, ranked second to Speaker of the House John Boehner, lost by 10 percentage points, a sizable defeat that has shaken the political outlook on Capitol Hill and within the GOP. More importantly it disappointed major key corporate donors, important relationships Cantor had cultivated during his 14-year tenure in the House, including Goldman Sachs (GS - Get Report) and Blackstone (BX - Get Report).
In retrospect, corporate campaign funding wasn't sufficient to guarantee Cantor the support of enough registered voters to win the primary election for Virginia's Seventh Congressional District. Brat, an economist who hammered away at Cantor's position of immigration reform, had a campaign budget of about $300,000, far less than the $5 million Cantor spent toward his re-election.
Here's a look at the top five corporate donors to Cantor's losing campaign as compiled by the Center for Responsive Politics in Washington: