Evidence shows Joe Biden served exactly one four‑year term and did not win the 2024 election:

• Biden’s presidency ran from January 20, 2021, to January 20, 2025, with Donald Trump succeeding him, confirming it was a single term. (en.wikipedia.org)
• In the 2024 U.S. presidential election, the Republican ticket of Donald Trump and JD Vance defeated the Democratic ticket of Kamala Harris and Tim Walz; Biden was president before the election and Trump after it, so Biden did not win a second term. (en.wikipedia.org)
• Biden initially ran for re‑election but withdrew in July 2024; Harris then became the Democratic nominee, further confirming Biden himself was not re‑elected. (en.wikipedia.org)
• Biden left office on January 20, 2025, when Trump was inaugurated as the 47th president, and he and Jill Biden departed Washington as a former first couple. (apnews.com)

Since Biden only served one term and did not win the 2024 election (and thus is not president beyond that single term, let alone past January 2029), Jason’s prediction that “this presidency is one and done” is right.