Rick Santorum

Attention now turns to the expected general election race between Mitt Romney and President Obama. There's talk that the contest could come down to just four states: Colorado, Nevada, Ohio and Virginia.

Mitt Romney's campaign asked broadcasters in Pennsylvania to stop running the campaign's anti-Rick Santorum ad as soon as possible. The move was made "out of deference to Sen. Santorum's decision to suspend his campaign," according to a Romney campaign spokeswoman.

Calls for Rick Santorum to leave the Republican race only increased after he failed to win any of Tuesday's primaries. But if Santorum and his team were close to taking that advice, that didn't come across in an interview NPR's Audie Cornish, an All Things Considered co-host, conducted with John Brabender, a top adviser to the former U.S. senator from Pennsylvania.

A defiant Rick Santorum dismissed calls to drop out and predicted he'll win the next contest in his home state of Pennsylvania on April 24. A look at what Santorum faces as the race heads to his backyard.

Impressive wins Tuesday could help Mitt Romney further the growing sense in his party that resistance is futile, that he will be the nominee. It would also make his rivals' arguments for staying in the race, especially those of Rick Santorum, the last not-Romney to pose a threat, sound ever more forced and divorced from political reality.

In Wisconsin, Maryland and the District of Columbia, polls show Mitt Romney with a wide lead. Yet Rick Santorum continues to campaign as relentlessly as ever.

Former Pennsylvania Senator Rick Santorum won the Kansas caucuses Saturday and thirty-three of the forty delegates that go with them. Rick Santorum and…

A daily digest of headlines from KCUR. Santorum Says Kansas Caucuses Matter Fast Food At Home In A Hospital? Committee Advances Streetcar Zoning House…

At a campaign stop in Lenexa on Wednesday, Senator Rick Santorum said calls for Newt Gingrich to leave the race were not coming from him, and if they…

The results of Missouri's "beauty contest" primary and caucuses in Minnesota and Colorado may be poor indicators of the sentiment of most Republicans and independents. Instead, they show the ardor of the fraction of voters who turned out — and the potency of the abortion issue in national politics.

A daily digest of headlines from KCUR.Santorum Gains Win And Momentum In MissouriCerner Logs Record GrowthNixon Eases Higher Education CutsKansas…