A member of Congress once told me that Representatives who consider changing their votes based on only a dozen or so phone calls from constituents are referred to as "bedwetters" by the other members of Congress. I thought it was funny, but in retrospect I should have asked for a list of the so-called "bedwetting" members. After all, knowing who they are would make it a lot easier to influence congressional behavior. "Bedwetters" are useful to activists.
In this light, Nate Silver is right: Specter's obvious lack of principles is best ray or hope in his entire party switch story. Given that voting data shows Specter has slowly moved to the right in recent years, then our best hope that his party switch will also result in a broad, overall leftward voting switch will have to come from his lack of principles:
But if you're a Democrat, would you really want Arlen Specter to be anything other than a soulless, unprincipled hack? If Specter were more concerned about self-consistency -- and less about self-preservation -- he'd probably still be a Republican right now. Moreover, Democrats had better hope that Specter is as nakedly power-hungry as possible, because his best move from the standpoint of self-preservation is probably not merely to become a Democrat but to become a reasonably liberal one, along the lines of Bob Casey Jr.
Indeed. We better all hope that Specter's obvious lack of principles translates into a massive shift in his voting habits. While Specter has said publicly that there will be no such shift, is there any reason to trust such an obviously unprincipled, power-hungry politician? Further, to help guarantee Specter's leftward voting shift, it is important that Joe Torsella stay in the primary campaign, and that Representative Joe Sestak continue to keep the door open to a primary run as along as possible. Clearly, Specter's behavior can be altered by the presence of real threats to the continuation of his political career.
Specter is an unprincipled wanker. So, let's use that to our advantage.