Mitt Romney hasn't won the Republican nomination yet, but President Barack Obama seems to be treating him like an opponent.

Obama spokesman Ben LaBolt came out firing on Romney's economic policies on Monday, Politico reported. He said Romney's criticisms of Obama weren't true.

It is deeply ironic that Mitt Romney, who is running on the No We Can't platform, would launch this false attack, said LaBolt, according to Politico. While the president is fighting for an economy that's built to last, where we outeducate and outinnovate the rest of the world, Mitt Romney has been busy telling Americans what he believes our nation can't do.

Obama's 2008 campaign manager, David Plouffe, meanwhile, went after Romney on Sunday's Meet the Press, saying the former Massachusetts Governor has no core, according to The New York Times.

Romney is sharing his lead with Herman Cain in the polls, but seen by many to be the clear favorite to eventually take on Obama in the general.