The latest news on primaries
Santorum's lead in Pennsylvania, his home state, has evaporated.
Sheldon Adelson’s millions kept Gingrich alive, but they couldn’t buy him the nomination.
A majority of would-be Gingrich voters in Louisiana say they would vote for Santorum if former House speaker was out of the race.
Delegate math and financial advantages should help Romney take the nomination.
Santorum and Gingrich must unite to deny Romney the nomination.
Romney routs Santorum, padding his already-formidable delegate lead in the race for the Republican presidential nomination
A moderate Republican voting bloc could add to the GOP front-runner's widening delegate lead Tuesday in Illinois.
Rick Santorum remains optimistic about his presidential nominee chances, but needs a serious delegate boost to remain relevant.
Santorum team spins gaffe after Romney's weekend win.
Republican voters don't believe Romney understands their problems.