This is easily explained with the Afghan surge and his Nobel Peace Prize speech. He gained nothing with all those who did not support him before, and lost many anti-war types who did.
agree with two statements that more troops in afganistan and the war speach to the antiwar nobel people drove down O’s numbers among the lefties.
they won’t be voting for pubbies next fall but they won’t show up to work for the dems either. and that’s a biggie.