"...our civil rights have no dependence on our religious opinions, any more than our opinions in physics or geometry; that therefore the proscribing any citizen as unworthy the public confidence by laying upon him an incapacity of being called to offices of trust and emolument, unless he profess or renounce this or that religious opinion, is depriving him injuriously of those privileges and advantages to which, in common with his fellow citizens, he has a natural right." --- Thomas Jefferson
During the campaign, one of the profs at Ave Law school put a petition together and went before Cardinal Maida to ask if there was anything he could do. It was pretty obvious from the start that Granholm wasn't Catholic.
Unfortunately, Curia policy is not to interfere in local politics. Maida did nothing.
We're pretty aware that although she lectors in a supposedly Catholic Church, Granholm does not follow the teaching of the Magesterium.
I asked her about why she hasn't been Excommunicated, and am still waiting for her response. Not being a Catholic, I'm glad I've got a good source to consult on this.