Sestak is pissed off in a bad way.  He was planning on an announcement in the next couple months once it became clear that Specter would not win the Republican primary.

I think the Admiral is just fuming right now and in the end won't run against Specter.  Maybe a run for Governor or an appointment to the Senate if Specter dies in the next few years is in Sestak's future.

I do hope a more progressive candidate succeeds in mounting a successful challenge against Specter, but it's gonna be tough.

Specter is going to have the entire establishment on his side, including our extremely popular president.

It's gonna be Obama, Biden, Rendell, Casey, and Reid versus the Netroots.

And if they manage to get Specter to swing over to a pro-EFCA vote in exchange for an AFL-CIO endorsement, we're gonna be facing a near impossible battle.

Strange to see our interests being pitted against those of Barack Obama, the very president who we helped put into office.

I think Sestak would still have a chance of bumping Specter despite the Dem establishment aligned against him. Arlen Specter is just Joe Lieberman all over again. They're more alike than not, thinking they have a right to the Senate seats they hold. When their rightful place as senators is threatened, their party loyalty fizzes and their principles get malleable. I predict Specter will be defeated in the Dem primary and runs as an independent, just like Joe. But this time the real Dem will win.

So far I feel we're missing THE key point; the netroots advocate for a progressive America.  That is NOT Specter.  Would Sestak back the 'public good versus private greed', the prevailing progressive frame?  Are we even in agreeement that is what we advocate?  

We ought to approach Rep Sestak with a VISION (frame) in mind, and discuss how we can go forward.  But, I doubt our movement is this mature (developed) in its vision.  If not, then we are still in the Dems vs. Repugs quagmire, and acting reactionary (reacting, rather than advocating).

Sorry to burst everyone's bubble, but there is absolutely no way the Governor Rendell's gonna allow Specter to be primaried. And in PA, usually what the Governor says goes. I love Sestak, and he has a bright future in the party, but he knows this too. Doesn't mean he won't stop complaining, but he's not going to run

He's about tit for tat the same as Tom Ridge and it looks like Tom Ridge is ready to join the Senate race against Pat Toomey. If all we are doing is getting the Liberal version of Tom Ridge in Arlen Spector, I would gladly take Sesik over Spector. Anyway he turned his back on progressives by spearheading Sam Alito in, and we shouldn't allow Reid to dictate to us who our nominee is, he turned his back on progressives by keeping Joe Lieberman. So, I support Seseik over Spector and he should beat Tom Ridge or Pat Toomey.

Can't Pennsylvania do better than EITHER of these men in 2010?  Progressive Punch rates Sestak as "Leaning Democratic."  As Nate Silver points out, it's quite conceivable that the New Specter will lean more Democratic than Sestak!

Alen Spector is the Liberal version of Tom Ridge and they will vote the same way. But it is all about party unity and we should endorse our candidates whether they are left or center just like the republicans are going to endorse Tom Ridge soon. If Tom Ridge runs and challenges Toomey then I will support Sestak, but if Ridge doesn't then I will support Spector. Spector, Ridge, Rendell, and Sestak vote centrist postions anyways.

There is a possibility that Specter has pissed off Republicans enough for them to start running against him.  I know that it isn't money from inside the Dem party, but it would help nonetheless.  As more information comes out about this and becomes more widespread, more people are getting pissed.  I don't think that an uprising from the netroots is out of reach.  I think a lot of people are just waiting on someone to come forward and say they are definitely running.  Its funny how fast it was forgotten how hard people worked to get Obama elected.

PA did elect Santorum, is there a chance here that we end up with Toomey after a democratic primary battle that gets ugly?

are there any polls on a sestak-specter race?