I forgot to add that James is going to have a difficult time beating Pensler for a few reasons. First is the amount of money that Pensler is spending on his own campaign. His ads are everywhere. More importantly is the fact that Michigan has an open primary and the Democrats will cross over to vote for Pensler, whom Stabmenow is more likely to beat. The last thing they want in Detroit or Flint is a black Republican against a white Democrat, so the ends justify the means.
MI has a open primary, but the Governor race is also in 2018 so the demonrats will be voting in their own primary to vote for that.
I doubt we will see much crossover voting this time.