Peggy Noonan surveys the state of the left, post-SOTU, and post-Alito:

It was the first State of the Union Mr. Bush has given in which Congress seemed utterly pre-9/11 in terms of battle lines drawn. Exactly half the chamber repeatedly leapt to its feet to applaud this banality or that. The other half remained resolutely glued to its widely cushioned seats. It seemed a metaphor for the Democratic Party: We don't know where to stand or what to stand for, and in fact we're not good at standing for anything anyway, but at least we know we can't stand Republicans.

There was only one unforgettable moment, and that was in a cutaway shot, of Hillary Clinton, who simply must do something about her face. When the president joked that two people his father loves are turning 60 this year, himself and Bill Clinton--why does he think constant references to that relationship work for him?--it was Mrs. Clinton's job to look mildly amused, or pleasant, or relatively friendly, or nonhostile. Mrs. Clinton has two natural looks, the first being a dull and sated cynicism, the second the bright-eyed throaty chuckler who greets visiting rubes from Utica. The camera caught the first; by the time she realized she was the shot, she apparently didn't feel she could morph into the second. This canniest of politicians still cannot fake benignity.

Maybe she knew the habitués of the Daily Kos, and other leftwing Web sites, were watching. Conservatives are always writing about the strains and stresses within the Republican Party, and they are real. But the Democratic Party seems to be near imploding, and for that most humiliating of reasons: its meaninglessness. Republicans are at least arguing over their meaning.

The venom is bubbling on websites like Kos, where Tuesday afternoon, after the Alito vote, various leftists wrote in such comments as "F--- our democratic leaders," "Vichy Democrats" and "F--- Mary Landrieu, I hope she drowns." The old union lunch-pail Democrats are dead, the intellects of the Kennedy and Johnson era retired or gone, and this--I hope she drowns--seems, increasingly, to be the authentic voice of the Democratic base.

How will a sane, stable, serious Democrat get the nomination in 2008 when these are the activists to whom the appeal must be made?

Republicans have crazies. All parties do. But in the case of the Democrats--the leader of their party, after all, is the unhinged Howard Dean--the lunatics seem increasingly to be taking over the long-term health-care facility. Great parties die this way, or show that they are dying.

Update: James Lileks uses even more advanced technology to distill the tone of the post-SOTU, post-Alito left into one universal sound pattern.