February 2019 is turning out to be a critical month in the presidency of Donald Trump. It may be the critical month. The midterm elections and record-long government shutdown are behind him. By delivering an optimistic and inspiring State of the Union address, Trump effectively reset his presidency and framed his opposition as beyond the American mainstream. But three tests await him: on Congress, on North Korea, and on China. How he handles these challenges will say a lot about his chances of reelection.