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>> it does, i have seen these candidates over the last few days on tv and they look tired. things are tired to evolve in the way you're talking about. but santorum, the name calling is that he is trying to make a point. he says they're like match set, they're twins, and the point is an ideological point. and he's trying to say that the problem with romney is that he is too close to the president on some issues, and the party would do better with starker and clear i contracts and santorum believes he would be that candidate. more conservative than romney and able to draw differences on key issu...

>> this morning in springfield, illinois, romney continues his lightweight theme tagging the president and romney -- >> i'm not an economic lightweight, president obama is, we cannot replace one light yn weight with another. >> mark halperin, it seems like someone you consider a colleague, calling him a lightweight, is this a new -- you're frowning at my theory here, but what do you think of this? doesn't it surprise you? >> no, it happens in campaigns. neither of these guys is setting the world on fire. neither of them has a coordinated attack that i think is breaking through on their own