Rubio: GOP will coalesce around a candidate 'one way or another'
© Greg Nash

Republican presidential candidate Marco RubioMarco Antonio RubioOvernight Defense: Tillerson, Trump deny report of rift | Tillerson says he never considered resigning | Trump expresses 'total confidence' in secretary | Rubio asks Army to kick out West Point grad Rubio asks Army to kick out West Point grad with pro-communist posts GOP establishment doubts Bannon’s primary powers MORE refused to say on Sunday whether rivals John Kasich or Ben Carson should drop out of the race, but said he thinks the party will be more successful when it coalesces behind one candidate.

"I believe that the sooner we can coalesce, the better we're going to be as a party in general," he said on "Fox News Sunday."

"It's going to happen one way or another. There's a natural process that's going to take hold."

Rubio said the other candidates in the race have been in it for a long time and have been working hard, adding that they have the right to decide their futures themselves.

Rubio said he thinks the question is the timing. Kasich is going to focus "entirely" on Michigan, Rubio said, while his campaign will continue to work all across the country. Rubio added that he's hitting three different states on Sunday.

"We're going to compete everywhere. We feel good about that coalescing happening in all those places where these other candidates are not."

Rubio came in second place in the South Carolina Republican primary on Saturday, edging out Ted CruzRafael (Ted) Edward CruzWhatever you think the Alabama special election means, you’re probably wrong This week: Congress gets ball rolling on tax reform Week ahead: Senators work toward deal to fix ObamaCare markets MORE by a very narrow margin. Rival Donald TrumpDonald John TrumpIvanka Trump pens op-ed on kindergartners learning tech Bharara, Yates tamp down expectations Mueller will bring criminal charges Overnight Cybersecurity: Equifax security employee left after breach | Lawmakers float bill to reform warrantless surveillance | Intel leaders keeping collusion probe open MORE won the primary. During his speech Saturday night, Rubio said Republicans now have a three-person race.