Article II, Section 3 of the Constitution says the president “may, on extraordinary Occasions, convene both Houses, or either of them, and in Case of Disagreement between them, with Respect to the Time of Adjournment, he may adjourn them to such Time as he shall think proper.”
Trump is going to call the House and Senate into session. The House will refuse. Trump will then adjurn both the House and Senate. In recess, Trump can appoint his Supreme Court nomination. Then, after November 3, Trump will declare an insurgency and things get fun.