Doyle seat in trouble too?

Mark Critz's PA12 seat remains the one most likely to be erased in redistricting, Tom Fitzgerald writes at the Inquirer today, but Mike Doyle ain't out of the woods either:

Republicans are talking about several scenarios, including wiping out Critz's 12th District. A former aide to the late Rep. John Murtha, Critz won last year's race to succeed him. The downside, one GOP insider says, is that some of the Democratic voters in that district may have to be distributed to veteran Republican Reps. Tim Murphy (18th District) and Bill Shuster (9th District).

Another possibility would make a new district that forces Doyle and Blue Dog Democrat Altmire to run against each other. Altmire's district voted for John McCain in 2008 and for Corbett and Sen. Pat Toomey (R., Pa.) last year. Some GOP strategists want to tweak Altmire's district to make him vulnerable in 2012, bringing in more Republican-leaning voters.