The Michigan primary is tonight. But the state angered the national Democrats when they moved their vote up. Obama and Edwards pulled out of the race there and Michigan's delegates won't have seats at the Democratic National Convention. For that side of the aisle this primary is symbolic at most.
For the Republicans, it's between McCain, Romney and Huckabee.
And, just for fun, here's some coverage of the races from Russia. We're worried about the state of their democratic institutions; they're worried about the state of ours.
UPDATE: It's Romney. Pulling in his first primary victory.