From Mother Jones:

Well, it looks like the Trans-Pacific Partnership treaty is in business. The standalone fast-track bill just passed the Senate by a hair, 60-37. Several Republicans defected and voted no even though they had voted yes the first time around, but only one Democrat defected. So now it goes to President Obama’s desk, where he’ll sign it.

Next up is a standalone Trade Adjustment bill, which Democrats killed the first time around because it was linked to fast track, which meant that voting no killed fast track. This time around, however, Democrats will presumably go ahead and vote for it since voting no will no longer stop fast track. Mitch McConnell and John Boehner have both promised to bring it up for a vote and to do their best to whip enough Republican votes for it to pass. If it doesn’t, Democrats will be furious at having been conned, and might take this out by voting no on TPP itself when it comes to the floor. This gives Boehner and McConnell plenty of motivation to get it passed, and I think they will.

This still doesn’t guarantee that TPP itself will have smooth sailing. However, it takes only a simple majority to pass, so there would have to be quite a few defections to kill it. Still, there’s time. Once the full text finally becomes public, I expect a full-court press from anti-TPP forces in both parties. I’d give it a 90 percent chance of passage at this point, but there’s still a glimmer of hope for opponents.

http://www.motherjones.com/kevin-drum/2015/06/fast-track-passes-tpp-now-nearly-certain-pass-too