OK, first off, this is a very strange situation, so please bear with me. More importantly, please rec this diary up; we need as much exposure as possible, as quickly as possible.
Michigan's 8th District has been "represented" (if you can call it that) by a Republican named Mike Rogers since 2000, when he won a squeaker of a race by just 111 votes to fill the U.S. House seat vacated by Debbie Stabenow when she was elected to the U.S. Senate.
You might be thinking that, given the closeness of the race, that MI-08 should be a district that the Dems could take back if they put their minds to it. Unfortunately, up until now, that hasn't happened. He won 68/31 in 2002, 61/37 in 2004, 55/43 in 2006 and 56/40 in 2008.
The closest anyone has gotten to him was Jim Marcinkowski in 2006, a former CIA agent and Naval Operations Specialist--and that was in an extremely Dem-friendly year (Marcinkowski, a former Republican, actually ran for Congress mostly because he was furious about the outing of Valerie Plame, who was a friend of his from his CIA days).