Anyone who thinks they know how Michigan’s fall elections will turn out is a fool, but this much seems fairly certain: The race for the 11th Congressional District will likely be the most expensive and the most hotly contested. There’s no incumbent, since mortgage banker Dave Trott decided two terms were enough. The district, which consists of a collection of Wayne and Oakland County suburbs, leans Republican. But it is close enough that the right Democrat could win it in the right year. As a