Maybe Trump's message to the poor black community has an effect and makes a difference.
We all need to say a prayer.
Detroit itself is in Wayne County, as is union downriver, the union airport area, the Grosse Pointes, and some white collar far western suburbs.
Oakland County has some strong republican areas on the edges, the ghetto of Pontiac, rich areas like the Bloomfields that won't like Trump, the hipsters and homos in Ferndale and Royal Oak, and Detroit's black flight in Southfield and Oak Park. It usually goes democrat overall, but rarely by a large margin.