Rick Santorum

Mitt Romney swept the five states holding primary contests Tuesday. His campaign shares its reaction.

Rick Santorum is out of the race for the Republican presidential nomination. It won’t hurt foreign policy debate.

Rick Santorum is set to suspend his campaign for president, reports suggest. Mitt Romney will be relieved.

Mitt Romney sweeps Republican Party primary contests in Maryland, Wisconsin and Washington DC.

Republicans accuse Obama of rejecting U.S. exceptionalism. But would their policies do more to undermine it?

Rick Santorum is the clear favorite in tomorrow’s Republican primary in Louisiana. But is the race over?

A strong win for Mitt Romney in Illinois feeds a growing sense of inevitability about the Republican primaries.

Rick Santorum has a great night in Alabama and Mississippi. Mitt Romney’s campaign will be less happy.

Mitt Romney wins a key victory in Ohio, but loses out in Tennessee despite heavily outspending Santorum.

Rick Santorum looks to be having a better night than Mitt Romney, taking Tennessee and staying ahead in Ohio.

As 10 states head to the polls, the math is looking good for Mitt Romney, and bad for Santorum and Gingrich.

Mitt Romney wins the crucial Republican primary state of Michigan, with Rick Santorum coming in second.