Former Republican presidential candidate Mitt Romney strongly pushed back Sunday morning against reports that his campaign saw New Jersey Gov. Chris Christie as a flawed potential running mate, saying on NBC's "Meet the Press" that "they don't come better than Chris Christie."

Romney shook off concerns about questions in Christie's background and over his weight that journalists Mark Halperin and John Heilemann report the Romney campaign raised in a new about the 2012 campaign.

Romney said that "there was nothing" that his campaign's vetting team found "that wasn't already part of the public record and that hadn't already been dealt with effectively by Chris Christie."

Romney ultimately chose Wisconsin representative Paul Ryan because Ryan had experience in Washington and with the federal budget that would complement his own experiences as governor of Massachusetts, Romney said.

But that doesn't mean Christie isn't White House material, according to Romney. He added that Christie "could easily become our nominee and save our party and help get this nation on the right track again."

"You can't argue with the kind of success he's had," Romney said, citing Christie's popularity in New Jersey and his "great track record, with a demonstrated ability to work across the aisle, with support of labor and blue-collar voters in New Jersey."

Romney also pointed to a few other Republicans he thought might make good candidates, including Ryan, Marco Rubio, and Jeb Bush.

"But Chris Christie stands out as one of the very strongest lights of the Republican Party," Romney said.

When asked whether Texas senator Ted Cruz was also a viable Republican candidate, Romney simply noted that he didn't list him among those in the party he thought were effective in getting elected.