The fight goes on.

Senate Minority Leader Mitch McConnell's (R-KY) cloture vote failed 48-45 just now, well short of the 60 votes necessary.

In the end, four Dems crossed over to vote with the Republicans: Sens. Mark Pryor (D-AR), Ben Nelson (D-NE), Blanche Lincoln (D-AR) and Mary Landrieu (D-LA). Sen. Arlen Specter (R-PA) was the lone Republican to vote with the Dems.

Now we're on to the question of whether an extension will be passed. We'll have more on that in a moment.

Update: Here's the official tally.