Here, in a nutshell, are the laws and procedures that limit President Trump’s power to launch a nuclear strike against North Korea anytime he likes:
There aren’t any.
If the president wakes up one morning, turns on Fox News and decides that Kim Jong Un has ignored his warnings of “fire and fury” — by announcing, for example, that he has built a nuclear warhead that can reach California — Trump can annihilate the people of North Korea entirely on his own.
He isn’t required to consult his secretary of Defense and other advisors, although that would be a good idea. He isn’t required to ask Congress for permission, either, even though the Constitution reserves the power to...