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.
Mecklin, John. "Duke’s Peter Feaver on the president and US nuclear command and control." Bulletin of the Atomic Scientists. November 30, 2017. https://thebulletin.org/2017/11/dukes-peter-feaver-on-the-president-and-us-nuclear-command-and-control/.
Slocombe, Walter B. Democratic Civilian Control of Nuclear Weapons. Policy Paper no. 12. Geneva: Geneva Centre for the Democratic Control of Armed Forces (DCAF), 2006. https://www.dcaf.ch/sites/default/files/publications/documents/pp12_democratic_civilian_control_nuclear_weapons.pdf.
Wellerstein, Alex and Avner Cohen. "If Trump wants to use nuclear weapons, whether it’s ‘legal’ won’t matter." Washington Post, November 22, 2017. https://www.washingtonpost.com/news/posteverything/wp/2017/11/22/if-trump-wants-to-use-nuclear-weapons-whether-its-legal-wont-matter/?utm_term=.b893af9d38d5.