Look, what the prediction markets are showing is that it's not going to be a free for all. It's either going to be Harris or Biden. I mean, that's what the prediction markets are showing. And I think that's fundamentally right.View on YouTube
Joe Biden initially ran for re‑election in 2024 but withdrew from the race on July 21, 2024, and endorsed Vice President Kamala Harris as his preferred successor. (en.wikipedia.org)
Following Biden’s withdrawal and endorsement, Harris announced her own presidential campaign and quickly consolidated delegate support, becoming the presumptive Democratic nominee. (en.wikipedia.org)
Through a virtual roll‑call vote in early August, Harris was formally confirmed as the Democratic Party’s 2024 presidential nominee (with sources noting the official nomination on August 5–6, 2024). (en.wikipedia.org)
No other Democrat—such as Gavin Newsom, Gretchen Whitmer, Michelle Obama, or an outsider—secured the nomination; the ticket was headed by Kamala Harris, not by any alternative candidate. (en.wikipedia.org)
Since the final nominee was Kamala Harris, one of the two outcomes the prediction allowed (Biden or Harris, with no one else), the prediction that “it’s either going to be Harris or Biden” was borne out by events.