RCP has an article going over a bunch of polls, generic and race specific. The shocker was that the GOP challenger was ahead by 4-5 points in MI-9. Michigan seems to be joining Ohio as a blowout state.
Peters barely won in a 2008 wave in which he underperformed Obama by about 7% against a very weak incumbent and was on everyone's endangered list from that moment onwards. Its an overwhelmingly Republican area on the local level, and in that respect looks a lot like PA-06 or PA-12 for the GOP, ie. fools gold because the PVI is highly misleading. It was quite obviously a top fifteen target along with MI-7 even in a neutral year, and it falling is like hearing that AZ-05 is. Bad news, but far less scary than the CA-20 poll, or the MA-10 primary numbers. Now those point more towards a 50+ seat loss.