In other news...
While the GOP candidates are campaigning in Michigan, about 250 auto worker marched to protest Romney, who as you know, wanted to let the auto companies go bankrupt. Almost all of them, when asked, say that they are supporting Obama. A lot of them say that Romney should have stayed in Massechusetts.
If I had to guess, I'd say that Romney will win the Michigan primary... But I would also guess that Michigan will turn from swing state to blue state, if it hasn't already.