coleman-pawlenty.thumbnail.jpgAs anyone with a computer, radio, TV, or newspaper knows by now, Arlen Specter switched parties yesterday.   Lots of people really doubt that his switch will do anything besides keep him in office past 2010, but as I stated over at Oxdown, I do think he’s a lot more likely to tack left than right, particularly as that’s the direction in which Pennsylvania’s been going over the last few years; Specter himself cited the 200,000 Pennsylvanian Republicans who became Democrats over the past year as a key reason for his switch.  [UPDATE:  Nate Silver at FiveThirtyEight provides data to show that when most pols switch parties, their voting patterns do usually evolve to be closer in sync with the party they joined and farther away from the party they left.]

Another reason for thinking that Specter will indeed vote more like a Democrat than a Republican:  The Republicans sure seem to think he will.  Otherwise, the pressure on both Norm Coleman and Tim Pawlenty from top Republicans to continue to block Senator-Elect Al Franken’s being seated wouldn’t have just increased another few notches.   (Norm of course denies that such pressure exists, but nobody really believes him — not when, among other things, John Cornyn’s been flapping his gums for months virtually ordering Coleman to stay at his post Or Else.)

One thing that both Coleman and Pawlenty need to keep in mind:  Two recent polls show that even a majority of Minnesota Republicans won’t be happy with Norm if he tries to — literally – make a Federal case out of this.  And Pawlenty, who is running next year for reelection as the state’s governor, had better pay attention to poll results showing that Minnesotans will be rather angry with him if he refuses to sign Al Franken’s election certificate when called upon to do so.