What’s especially curious about all of this is that Palin had a more obvious and productive route, which she’s inexplicably chosen to ignore. As Chris Orr recently noted, “Perhaps the most mystifying element of Palin’s recent forays into nuttery is that, politically speaking, it would be difficult to come up with stupider way to position herself in the wake of her v.p. run. The base already loves her — the diehard pro-lifers, the hands-off-mine individualists, the anti-elitist brigades, you name ‘em. Where she has (deepening) trouble is with everyone else: moderates, socially liberal libertarians, DC-establishment types, and anyone who places a premium on basic competence.”

Palin had an opportunity to prove her critics wrong. She could have returned to Alaska after last year’s campaign, studied up on public policy, and built up some kind of record in office, preferably with some achievements. Instead, Palin has become an even more rigid ideologue. Given a chance to prove herself as leader, Palin has decided she’d prefer to walk away, blinded by a combination of ambition and misplaced arrogance.

Andrew Sullivan must be on cloud nine right now:

I think the simple truth is that, as even Alaskan Republicans told us last September, she was far from able to be governor of Alaska, let alone vice-president of the United States. Once the klieglights hit, it was only a matter of time before she imploded or exploded or some gruesome combination of the two. The librul media will be blamed for everything on her inexorable path to becoming a Fox News celebrity. Maybe a reality show? Someone hire her for The View!

In the end, I think, the one thing to say is that the Republican party is in such a total state of collapse and incoherence that it actually believed she could be a future president; and that John McCain was so reckless, so cynical and so cavalier that he was prepared to rest the national security of this country on her shoulders if he, in his seventies, were to become unable to fulfill his duties or die. In some ways, this is a moment to reflect on McCain, and his irresponsibility, not Palin and her drama.

I’m too stunned to say anything else, to tell you the truth. And yet not surprised at all.

Update 3: More reactions from Sully:

Allahpundit agrees her career is over:

Placing your ambition over your commitment to the state looks shady, especially for someone who won’t have a single full term as governor under her belt for the primaries.

Josh Marshall:

Okay, we’re getting our first indication of what happened. It seems like a colossal sulk on Palin’s part, or perhaps better to say an effort on her part to ingeniously combine anti-liberal media bias agitation with Christianist politics by portraying herself as having been crucified by the liberal media.

Jed Lewison:

Unless she’s a total moron, there’s no way she’s running for president. Then again, maybe she is a total moron.

Dan Riehl:

My take – she’s not done and will look to go national in some way setting up for a possible 2012 run.