https://www.thoughtco.com/the-supermajority-vote-in-us-government-3322045
https://en.m.wikipedia.org/wiki/Impeachment_process_against_Richard_Nixon
https://en.m.wikipedia.org/wiki/Impeachment_of_Andrew_Johnson
https://en.wikipedia.org/wiki/List_of_presidents_of_the_United_States_who_died_in_office
https://en.m.wikipedia.org/wiki/Impeachment_of_Bill_Clinton#Impeachment_by_House_of_Representatives
https://en.wikipedia.org/wiki/List_of_presidents_of_the_United_States_who_died_in_office
https://en.wikipedia.org/wiki/Impeachment_in_the_United_States
https://en.wikipedia.org/wiki/High_crimes_and_misdemeanors
https://www.businessinsider.com/25th-amendment-how-can-you-remove-president-from-office-2017-3
https://www.archives.gov/founding-docs/constitution-transcript
https://www.archives.gov/founding-docs/amendments-11-27
https://www.thoughtco.com/high-crimes-and-misdemeanors-definition-4140196
https://www.lawfareblog.com/must-house-vote-authorize-impeachment-inquiry
https://www.sltrib.com/news/nation-world/2019/09/24/how-does-impeachment-work/
https://www.ajc.com/news/national/how-does-impeachment-work-here-the-step-step-process/5wUTeEdEgheqohUL1WA0IJ/
https://www.youtube.com/watch?v=hSszixvo7d8
https://www.historyextra.com/period/modern/history-impeachment-president-trump-nixon-clinton-explained/
https://www.nytimes.com/2018/09/06/us/politics/25th-amendment.html
https://www.nytimes.com/2019/09/24/us/politics/impeachment-trump-explained.html
https://www.aljazeera.com/news/2019/05/impeachment-6-190510153644885.html