From 2005 to 2007, U.S. House members raised more than $700 million dollars in campaign contributions. Because this figure excludes individual contributions of less than $200, it can be assumed that most of it comes from wealthy donors and corporations. Fannie Mae and Freddie Mac (federal-government coordinators of mortgage markets) alone have donated over $4.8 million to members of Congress since 1989 and that during the past few years securities and investment firms have donated over $113 million to campaign funds.
From 2005 to 2007, 79% percent of campaign funds raised by U.S. house members came from outside of their districts. 97% of House members raised more than half of their funds outside of their districts.
In 2010, the U.S. Supreme Court ruled for the first time that American politicians can accept campaign contributions from any foreign nation, foreign organization, or foreign person.