Quick stats on the super PAC, supporting conservatives

Quick stats on Americans for Prosperity, supporting conservatives

Non-disclosing nonprofit conservative organizations continue to blanket airwaves with attack ads in Senate races.

Unions pumping money into redrawn House district in Pennsylvania.

Contested Senate races hit with ad onslaught by tea party-aligned FreedomWorks for America.

Out-of-town parties and super PACs are outspending candidates in some House races, numbers show.

Underwriters of attack ads can easily avoid being named.

Supreme Court decision paves way for $75 million in corporate donations to super PACs.

Dems win GOP seats in Indiana, Massachusetts; McCaskill survives in Missouri

Quick stats on the biggest financial backers of Election 2012.