You are mis reading the situation, they are turn against "the one" because he is not leftist enough for them. Those disaffected Obama voters want Communism and they want it now.
There are far more disaffected Obama voters who turned against him because they thought he was a centrist and a healer and found it he is a Communist and a divider. I know many of them who in the last year have begun to apologize to anyone who will listen for voting for Obama. It’s a wonderful sight to see and hear.
They hate him. They view him as betraying their interests for race pandering and communism (ironic). You don't see the Union pro Obama signs in this area like you did four years ago.
I am actually very surprised. The steward at my plant asked me about Santorum, and then Rommney.