PDFs saved on July 3, 2021.
Nicholas Goldberg, “Is Trump the worst president ever? He’s got some competition,” Los Angeles Times, October 20, 2020, https://www.latimes.com/opinion/story/2020-10-20/the-worst-president-in-american-history
Paul Guggenheimer, “James Buchanan not a tough act to follow for Biden as 2nd president from Pennsylvania,” Pittsburgh Tribune-Review, November 15, 2020, https://triblive.com/news/pennsylvania/buchanan-not-a-tough-act-to-follow-for-biden-as-2nd-president-from-pennsylvania/
David Charter, “Donald Trump is only fourth worst president, say US historians,” Times, July 2, 2021, https://www.thetimes.co.uk/article/trump-is-only-fourth-worst-president-say-us-historians-in-survey-sszzftqct