In addition to reflecting more local concerns, the upcoming midterm elections symbolize a referendum on the President’s performance, both at home and, to a lesser extent, abroad. In so doing, the midterms reflect fluctuations in the national mood. 

But a shift in the Congress’s makeup could also have implications for the way that the Hill works with the White House in dealing with North Korea.

If Republicans maintain their hold on both houses of Congress, the midterms will add wind to President Trump’s sails. Things would be different if the Democrats take