Why the anti-surge bill lost: Dems divided

Josh Marshall explains how the Republicans were able to shut off debate on the anti-surge bill:

The Republicans main aim here was to prevent a no-confidence vote in the senate on the president's war policy. They threatened a filibuster for a while until they finally came up with a rationale for the filibuster. And what they came up with was this ...

There were three resolutions in play today. The Warner-Levin anti-surge resolution. The McCain-Graham-Lieberman pro-surge resolution. Then there was a third resolution offered by Sen. Judd Gregg. The key is the Gregg resolution. All the Gregg resolution really said was that it's the Commander-in-Chief's duty to assign military missions and the Congress's duty to fund them. (Constitutionally, it's a ridiculous claim. But let's set that aside for the moment.)

Now, here's the rub. The Democrats wanted them all to go to a simple majority vote. The Republicans wanted each to go to a 60+ filibuster-breaking vote.

How do the two thresholds shape the debate?

If each goes to a simple majority vote, the anti-surge resolution wins, the pro-surge resolution loses and the Gregg amendment probably wins too. But the headline is the repudiation of the president. The Gregg amendment is an afterthought.

However, if each resolution goes to a 60 vote test, the thinking was that both surge resolutions (pro and con) would fail. And only the Gregg amendment would win.

So opposition to the president would lose and the only winning amendment would be one that gets the senate on the record saying that Congress is obligated to fund whatever missions the president chooses.

That's what happened.

Will the ten Democrats who planned to vote for the Gregg amendment please stand up? [I'm not counting Lieberman as a Dem].