Sen. Lindsey GrahamLindsey Olin GrahamThe Hill's 12:30 Report — Sponsored by Delta Air Lines — GOP centrists in striking distance of immigration vote Dem leaders request bipartisan meeting on Russia probe Senate GOP urges Trump administration to work closely with Congress on NAFTA MORE (R-S.C.) was clear Sunday on what he wants in a 2012 GOP presidential nominee: "the most electable conservative."

But the senator was pressed on NBC's "Meet the Press" on specifically which of the current names believed to be in the ring would deliver.

"Probably [Mitt] Romney," Graham said.

"He's got his problems as a candidate, but so does everyone else," he said.

Graham said that the ideal candidate would have to address a broad range of issues from immigration reform to gas prices creeping toward $4 a gallon.