Pat Buchanan: Rubio's too neoconservative to be VP

“He has moved with the neoconservatives,” Buchanan said. “At his speech over at the Brooking Institution, he not only, you know, said that Putin was basically a weak leader, he said we should get involved in Syria — and maybe, militarily, we’ll have to attack Iran. He’s with Joe Lieberman and [John] McCain and Lindsay Graham and that crowd. And I don’t think that’s a winner right now.”

Buchanan also said Rubio’s youthful appearance, compared with Romney, is a potential problem.