The big question will be motivated turnout. I do know that the hard core Anti-Romney and Santorum voters will be there. Will the mushy middle turnout out for Mitt? I'm not sure. Those negative ads and robos can backfire at times. Blue collar democrats and independents, significant in Michigan will be more apt to cross over based on social issues and problems with Romney's wall street persona.
Another thing is that Michigan is allocating votes based on the new congressional districts. One candidate can win the state and lose the delegate race.
From local elections in my town — just for a bitter mayoral race — I know too many calls can turn one off of a candidate. It definitely happened to me.
I was like, where does this guy get the money to send out all these flyers and make all these annoying calls.
It may work up to a point but then it backfires.