And given that Republicans control the redistricting process, Demcorats should watch their backs, right?

As it often is with redistricting, it might not be so simple.

Much like in other big states, Republican gains in Michigan in 2010 make it virtually impossible for the party to add winnable seats in 2012 without severely risking the districts they currently hold. That's in spite of the fact that Republicans control all levers of the redistricting process in the Wolverine State.