After the 2nd cloture vote failure at noon on Thursday, Harry Reid could not get unanimous consent to call up amendments to the bill because Jim DeMint refused to give his consent. This was extremely problematic for Reid because he wanted to get in votes on 6 more amendments before the last try at a cloture vote.
At that point, all the senators who were participants in the "Grand Compromise" AKA the "Masters of the Universe" by the opponents of the bill, leaned on DeMint to try to get him to give consent for the bill to move forward. Unfortunately for them, DeMint wouldn't budge. This essentially killed the entire afternoon that the pro-amnesty side hoped to use to shore up support for the bill.
While DeMint was gumming up the works, the opponents of the bill, including most prominently Jim DeMint, Jeff Sessions, and Tom Coburn, huddled and came up with a list of conservative amendments they wanted considered.
The "Grand Compromise" crowd didn't want a lot of these amendments to be voted on because either some of the amendments would have been accepted and it would have killed the bill or alternately, they would have had to vote against common sense enforcement measures and made themselves look bad.
Eventually, after the process was tied up all afternoon and failed a third cloture vote, Harry Reid yanked the bill even though the opponents of the bill said they were willing to stop gumming up the process as long as all the amendments they wanted were voted on today.
I think we need to send Jim DeMint flowers or something. He is officially my new hero. We all owe a HUGE thank you to DeMint, along with Tom Coburn, Jeff Sessions, John Cornyn, and Elizabeth Dole. You can get their phone numbers and/or e-mail addresses HERE. Make sure they know how grateful we all are. This bill, in all likelihood, is dead thanks to their efforts, and most of all Jim DeMint's.