TPP is not a treaty, it like NAFTA is an “agreement” and can be passed by a simple majority in the House and Senate. I’m betting it passes in a lame duck session just like NAFTA did.
Whether they pass it as an agreement or decide to use it as the basis for a treaty, they cannot approve it legislatively without publishing it. I will never have to rely upon Assange to determine whether I like it or dislike it.