This sounds wry, but I am unsure what you mean.
Donald Trump is commander in chief, and the state of war with North Korea was never, ever called off by Congress. It is the Congress of long ago that set this into motion.
I don’t believe there was ever an actual Congressional Act of War with North Korea. Probably trivial point but IIRC FDR was the last to get one on Dec. 8th, 1941.