The resources below are books, articles, and other media that are useful references for aspects of this topic. When they are complete, each reference will be described and tagged. See here for an example of a more or less complete entry.
Demirjian, Karoun. "Trump’s nuclear authority divides senators alarmed by his ‘volatile’ behavior." Washington Post, November 14, 2017. https://www.washingtonpost.com/powerpost/senators-deadlock-in-debate-over-whether-to-restrain-trumps-nuclear-launch-authority/2017/11/14/491a994a-c95b-11e7-8321-481fd63f174d_story.html?utm_term=.5eecae311b16.
Lamothe, Dan. "If Trump wants a nuclear attack against North Korea, his military advisers have few other options." Washington Post. August 10, 2017. https://www.washingtonpost.com/news/checkpoint/wp/2017/08/10/if-trump-wants-a-nuclear-attack-against-north-korea-his-military-advisers-have-few-other-options/?utm_term=.924fe6b2f5e5#comments.