After loss, Santorum looks ahead to Pa., La.
Former Pennsylvania senator highlights his roots in home state election party following second place finish in Illinois
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Former Pennsylvania senator highlights his roots in home state election party following second place finish in Illinois
Republican front-runner hammers Obama on the economy during speech following win in Illinois primary
Mitt Romney defeats Rick Santorum by double digits as the GOP front-runner expands his delegate lead over his rivals
10-term Ill. Republican congressman loses reelection bid during a grueling and aggressive primary campaign
President hosted St. Patrick's Day reception at the White House for the visiting Irish Prime Minister
CBS News tours president's reelection headquarters and asks strategist David Axelrod about Romney's campaign and super PACs
First daughter on school trip to Mexico "was never in danger" from 7.6-magnitude earthquake, first lady's office says
Billionaire donor Peter Thiel gave nothing to Ron Paul in February
Texas homebuilder Bob Perry, payday lending companies, among the contributors to pro-Romney super PAC in February
The Republican presidential candidate's fundraising slowed last month to about half of what it was in January
Early exit polls show that Illinois GOP voters not yet sold on their candidate; economy, defeating Obama top concerns
Republican voters say they want someone with strong executive experience. So why are they voting for Rick Santorum?
Paul Ryan budget may not make it into law, but it makes clear Republican priorities heading into presidential election year
GOP presidential hopeful says Obama set a bad precedent letting his daughter travel to Mexico
Projections hinge on nominating conventions in Iowa, Missouri, and Washington plus changes to Florida and Arizona counting