Here's a link my sister made me aware of from Michigan that I check out from time to time.
It is a tight race with Romney holding a slight lead. However, in Michigan EVERYONE can vote in primaries, Dems & Reps. 16 percent have already voted by mail which they say favors Mitt. YET, I have heard rumors (and looking at comments in the article) that Dems are encouraged to vote and to vote for Santorum to throw Mitt off. Whether that is true or whether or not it happens, could be interesting.
http://www.mlive.com/
TIS