Most of the Obama supporters here (most of the Democratic ones anyway) will line right back behind Clinton once she wins the nomination exactly like they did during his Presidency. This will be especially true if she picks him as her Veep.
The only concern I can see goes to black voters, but I'm sure they have some plan to deal with that.
In my poll here, half the Dems on this site are not voting for Clinton against McCain. They are crossing over, or sitting it out, going third party or whatever. Obviously, the sample here is not representative of Dems in general, but it does suggest at the moment that there is some animosity to Mrs. Clinton.
People change. On DU in 2004 there were loads of hardcore Deaniacs who were screaming "I'LL NEVER EVER VOTE FOR JOHN KERRY!" and raving about his vote for the Iraq War Resolution and all that. Few of them were banned and most were still around on election day, admitting that they were about to reluctantly vote for Kerry. And based on turnout and the performance of third parties, it's safe to say the vast majority of Deanies did everywhere.
