Why do you believe this? Specter will not run for relection and he has an agenda. So why would he possibly do the right thing now when he hasn't before? I would love to believe what you're saying, but I see no logical reason to. Unfortunately.
My faith is in Santorum, Bush, and others. They would not let him get the chair if they didn't think they had him under control, and that he would stop Bush's judges.