I predict former governor John Engler runs against her. I believe he moved back to Michigan within the past year or two...at least I thought I read that. Engler would trounce Stabenow.
I have in on a very close source that John will NOT run. First it would be a big pay cut for him. He is happy with what he is doing. He is enjoying his family and does not want to go through all that work again. I do not blame him.