daca down. president trump predicted today that if that happens, he'll get a deal with the democrats to let the dreamers stay. lester >> pete williams in the supreme court, thank you. president trump facing what could be one of the most consequential chapters of his presidency tonight as house democrats began public impeachment hearings tomorrow on ukraine. our hallie jackson is at the white house >> reporter: in the calm before the impeachment storm, washington's bracing for a blockbuster day. >> democrats in washington would rather pursue outrageous hoaxes and delusional witch hunts which are going absolutely nowhere don't worry about it >> reporter: the president projecting confidence ahead of those impeachment hearings, starting tomorrow with top diplomats bill taylor and george kent, who paint a picture of a quid pro quo the president's supporters slamming democrats. >> they're relying on people like bill taylor as star witness who is going to tell us something that is third or fourth hand information. >> reporter: nbc news has learned more about the gop playbook a strategy memo