The White House and Republican presidential hopeful Mitt Romney\'s camp on Monday exchanged jabs as the former Massachusetts governor keeps his frontrunner status in the polls. In response to a question about senior Obama aid David Plouffe\' s denouncement of Romney, White House Press Secretary Jay Carney said \"as anyone who\'s watched (Mitt Romney), it\'s always a question as to where he was and where he is and where he might be on any given issue.\" \"Mr. Plouffe works for the White House, so I would say that his views represent the White House\'s views,\" Carney said during an off-camera press gaggle. In a scathing attack on Romney, Plouffe labeled the candidate as a man with \"no core\" Sunday on NBC\'s \"Meet the Press,\" saying \" if he (Romney) thought it was good to say the sky was green and the grass was blue to win an election, he\'d say it.\" In response, Romney\'s campaign said Plouffe\'s comments were an attempt to distract from what it called \"the historic loss of middle-class jobs that has occurred\" during Obama\'s presidency.