Give me a break. Black people in Detroit are not going to vote for a Republican over a Democrat - no matter who the Republican is. This is the same population that elected Kwame Kilpatrick - twice! Black organizers, black radio, unions, etc, will savage Carson, but even more important is the simple fact that black people support bigger, more expansive government. They may be ignorant, but they know which party supports the most freebies. In Detroit, the best we can hope for is maybe depressed black turnout.
I'm all for Carson running, but let's not kid ourselves - the vast majority of black people in Detroit are still going to vote overwhelmingly for whoever the Democrat candidate is. Carson may very well be able to win Michigan for us, but he will have to overcome the vote totals in Detroit to do it.