That’s the way I read it. Senator Specter took a look around his home state and saw that the wingnut population there would not vote for him and decided to change parties. The GOP population in PA has shrunk and will shrink even more when self-respecting Republicans break ranks to vote for Democrat Specter in 2010. At some point these homeless Repubicans will see the wingnuts bring themselves down and move back to retake control of the party that once boasted an Eisenhower but now boasts a Cheney. Specter’s move is the ultimate, sane death blow to the GOP. Wingnuts are more firmly in control of that incredible shrinking party. That is really all than need to be said.
If you think this is just PA talking, look at the daunting figures from PPP.