From yesterday.
With enough support from conservatives, Irey could win. It's always tough to unseat an incumbent but this isn't an OVERLY Democrat district. According to CQPOLITICS.COM (a great site for finding out these kinds of things) this district (PA-12) went only narrowly for Kerry in 2004 by three points. Contribute and organize, folks!
There's a link in what you posted to Diana's press conference where she REALLY BLASTED Murtha. Everyone who goes to this thread should check that out. It's great.