I beg to differ, with Obama coming out yesterday in support of gay marriage, he pretty much has drven away any last conservative Dems away.
This article will be of interest to you. By Michelle Malkin, which came out this week:
http://michellemalkin.com/2012/05/09/scytl-voter-fraud-facts-and-fiction/
I sincerely hope this was the nail in the coffin for him.