Expected. Winning a Democratic primary is about putting different ideological/ethnic coalitions together, and the primary calendar/delegate allocation rules make winning Black Southerners vastly overpowered. Whitmer is a candidate for Chicago wine moms, but when did they ever decide a Democrat primary?
Raphael Warnock or Wes Moore, 2028!
I agree she'd lose to someone like Warnock in 2028 but you can't convince me Harris would be favored against her. All Whitmer would have to do is argue she's more "electable" than Harris which would be fairly easy to do. Black voters seem to be drawn to that argument