I agree with Jane about this bit from the debate last night. Senator Obama compared Senator Clinton's position on Social Security to the postion of Romney and Giuliani. Then supporters of Senator Clinton booed, and both Congressman Kucinich and Governor Richardson stood up for some reason, as if to say, "Oh no you just didn't!"
The only really weird thing about Senator Obama's comment was that he said "tax cut" instead of "tax increase" twice. Other than that, it wasn't outside the context of the general discourse of the debate.