This is what bugs the shit of out me

Why is it that MSNBC is all up in Clinton's face about a funny, sarcastic remark said at a rally, when Obama can do the same thing and nobody cares? From The Guardian:

"In what bordered on a comedy routine, Mr Obama chuckled and the crowd of 300 roared with laughter as he mocked his opponents in Monday’s debate, John Edwards and Mrs Clinton, for their responses to a question about the candidates’ biggest weaknesses.
He recounted how he had answered honestly "because I’m an ordinary person" that "I don’t handle paper that well, my desk is a mess" after being given the question first.
"The other two, they say, 'I’m just too passionate about helping poor people' [Mr Edwards], 'I am just too impatient to bring about change in America' [Mrs Clinton]. If I’d gone last, I’d have known what the game was.
"And then I could have said, 'Well, you know, I like to help old ladies across the street. Sometimes they don’t want to be helped. It’s terrible'."

After Clinton's valid complaint about unfair treatment by the press, the media when on the defensive and consistenly said she was "whining" (P.S. also a word used by Obama in the last debate) about a non-existent issue.