What characterized this election was not policy substance (Trump changed his tax plan numerous times, and noone cared). It was this question:
Is [candidate X] fighting for you?
It’s not all that easy to pin down exactly what Trump stood for. It was very easy to pin down for whom Trump stood for. Indeed, the words you and your were used five times in Trump’s final two-minute ad. The word our was used eight times. You could have interpreted that to your discretion. And that message appealed most to the non-college-educated of all races, genders, and regions.
And that was enough for Trump to win Michigan.
Hillary lost for the same reason Mitt did: both were elitists.