It apparently contains a free mobility of labor provision that works out to unlimited immigration. A straight up-or down vote will grant Hussein any damned thing he wants in that agreement because enough Republicans will vote with the Democrats to pass it, whatever is in it and it is a McConnell special project to begin with so whatever Hussein wants Hussein will get. The Democrats who are opposing it now will come around for the vote because the agreement will include something that promises to strengthen unions.
Hussein already has his Enabling Act courtesy of the hard work of McConnell and Boehner, his Senate and House czars in December. The trade bill will build on that and possibly be the back foot stepping over the mussolini line.