welcome back to "up." i'm david gura. president threatened to raise tariffs on mexico tomorrow. mexico has agreed to deploy its new national guard, agree efforts to tackle human trafficking operations. and there's some migrants that will wait in mexico. one thing the white house could not get mexico to do was sign a safe third country treaty. yesterday, president trump was excited about the deal. we're learning from "the new york times", it was not all that new. let me read the piece from "the new york times." the deal to avert tariffs that