Senate races in Nevada, Ohio and Florida continue to draw big money

Super donor Robert Mercer is bankrolling a new super PAC trying to oust Rep. Tim Bishop, D-N.Y., in his home district

Outside spending spree spreads to lower chamber in a big way.

Public employee union opens attack on GOP Senate candidates

Ads by anonymous political groups bash Obama on big night

Rahm Emanuel’s resignation from the Obama campaign to raise big-money funds shows the primacy of newly empowered super PACs

Stimulus helped, says CBO

Ad ties candidate to disgraced governor

The nation's powerful gun lobby has stayed relatively quiet, but is now spending big on ads in Florida, Ohio and Virginia

Anti-abortion Susan B. Anthony List releases ad from 'abortion survivor'