The top presidential candidates receive substantial contributions from a variety of industries and interest groups. Here is the sector-by-sector breakdown.
SOURCE: Center for Responsive Politics | The Washington Post - February 26, 2008
Finding Political Strength in the Power of Words Article | The 2008 presidential campaign has witnessed the rise of a whole arsenal of new political weapons, including Internet fundraising and sophisticated microtargeting of voters. For Sen. Barack Obama, however, the most powerful weapon has been one of the oldest.