The immigration bill isn't a done deal yet:
In an unusual admission, two leadership aides - one Democrat, one Republican - told FOX News that they have no idea how the vote will go. Vote-counting is something that is normally down to a science in the Senate chamber. The vote to end debate, called "cloture," is expected at 10:30 a.m. ET.
The mood in the Senate took a perceptible shift Wednesday as lawmakers decided not to "table," or send into permanent limbo, one of the 27 amendments approved for debate. That amendment was designed to weaken worker verification standards that are key to the measure's approach to reducing the ability of illegals to obtain work with fraudulent documents.
Those two appear to be Kit Bond and Ben Nelson, plus add Pete Domenici. Others are sure to follow as the rats leave this sinking ship of a bill and save their political carrers in the process. Bush's play for some type of domestic policy legacy may well be kaput by Friday--the day he thought the bill would be passed.
A few in the Senate voted for cloture because they could always use it in the next election but will vote against it this time to muddy the waters so badly that they will be able to argue both sides. Of course, we conservative will surely remember who left us hanging in a time of need.
Others say that the bills supporters only have 59 votes and cloture will fail if that's the case.

From the
Congressional Quarterly's CQPolitics.com has an interesting story up today by David Nather, 
