Maybe Frist doesn't have the votes?
Reid is laying the smack-down to both Bush and Frist. If Frist can't get Bolton through, is he really finished or what? (via DKos diarist Avian)

Senate Democrats will not allow a vote on President Bush's choice for U.N. ambassador unless the White House hands over records of communications intercepts Bolton sought from the secretive National Security Agency, Minority Leader Harry Reid said Thursday.

"You can't ignore the Senate. We've told them what we've wanted. The ball is in his court," Reid, D-Nevada, told CNN. "If they want John Bolton as ambassador to the United Nations, give us this information. If they don't, there will be no Bolton."

Bolton the undiplomat would be a tragic, insult-to-injury choice. Still, I had doubted a Democrat coalition could stay intact with all of them shying from the "obstructionist" charge. Steve Clemons at The Washington Note, in a roundabout post, eventually gets to the rub: the White House has a Bolton confirmation staring them in the face, if only they would compromise on some of the Senate Democrats' requests that have been refused or delayed for months. Those lingering requests (whose content I don't understand in the least) appear to be the pin holding together the filibuster. Still, it would appear, the White House refuses.

If you have a Senator who is a Democrat, or at least plays one on TV, send a note and encourage holding the line. The political win would be gravy, but the real victor is nothing less than the whole world. Sometimes just saying sorry isn't enough.