I'm most interested to see if kid rock will actually run for the senate. Seems like he's strongly considering it. I can't see him standing a chance, but who knows. I don't really know much about what his platform will be, but he seems like a goober so I'm not expecting much.
He would be running against incumbent Debbie Stabenow, who all things considered has a pretty good voting record on issues that I care about. She voted against the authorization of the Iraq war, has a pretty good record on environmental issues, and has been a friend to minorities/LGBT/immigrants, has opposed most bills that would line the pockets of the 1%, and has gone on record in support of a Medicare for all health care system.
As for 2020, too soon to say. I would of course support Sanders if he ran again, but he's an old man. Other than him I like what I've seen from Kamala Harris, but I haven't done enough reading on her to really form an educated opinion just yet. I'm lukewarm on Al Franken and Elizabeth Warren. Their stances on certain issues make me hesitate a bit (I don't know if Franken would sincerely push for single payer for example).
Who are you looking at for 2020?