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.
Blair, Bruce G. "Strengthening Checks on Presidential Nuclear Launch Authority." Arms Control Today 48, no. 1 (Jan/Feb 2018). https://www.armscontrol.org/sites/default/files/files/ACT/ACT_JanFeb18_Blair_Prepublication.pdf.
Burr, William. Presidential Control of Nuclear Weapons: The "Football." Briefing Book #632. Washington, D.C.: National Security Archive, 2018. https://nsarchive.gwu.edu/briefing-book/nuclear-vault/2018-07-09/presidential-control-nuclear-weapons-football.
Hosenball, Mark and Phil Stewart. "Pentagon to lease privately owned Trump Tower apartment for nuclear 'football': letter." Reuters. May 5, 2017. https://www.reuters.com/article/us-usa-pentagon-trumptower/pentagon-to-lease-privately-owned-trump-tower-apartment-for-nuclear-football-letter-idUSKBN1812B5.
Johnson, Tim. "Trump’s finger soon will hover over the nuclear button. Will he be ready?" McClatchy DC. November 25, 2016. https://www.mcclatchydc.com/news/politics-government/white-house/article117054908.html.
Lewis, Jeffrey. "Our Nuclear Procedures Are Crazier Than Trump." Foreign Policy. August 5, 2016. https://foreignpolicy.com/2016/08/05/our-nuclear-procedures-are-crazier-than-trump/.
Wellerstein, Alex. "No one can stop President Trump from using nuclear weapons. That's by design." Washington Post, December 1, 2016. https://www.washingtonpost.com/posteverything/wp/2016/12/01/no-one-can-stop-president-trump-from-using-nuclear-weapons-thats-by-design/?noredirect=on&utm_term=.05b5b6a7fe06.