One of the economists from Planet Money did an interview on This American Life this week and broke down trade decently. From what he said, there is no trade deal that will give us more than what another country gains from trade. Purely based on the fact that we are doing so well and most of the countries that we would trade with, for cheap labor reasons, are not doing well. We both gain, but they much more than us. If the requirement of a "good deal" would be to reverse that, it probably isn't possible given quality of life differential between us and any country we are doing large quantity of trade with.
Also, he had a good piece on NAFTA. He noted that a total of 700,000 jobs were lost over 15 yrs and that we are adding just under 200k/month this year alone. He also noted that Uni of Chicago polled a bunch of economists and 95% of them said that NAFTA has benefited the US and 5% said they weren't sure. None said it was negative.