In the past, 538 has covered presidential debates by sponsoring polling of debate viewers and asking them who won. If they do this again for the first such debate in the 2024 election, this market resolves Yes if Biden wins and No if Trump wins, according to that polling.

If there are several questions polled about the candidates' debate performance, this question resolves based on the closest thing to the question "Overall, who do you think won the debate?"

If 538 does not sponsor their own polling but does have a definitive post-debate article covering other polling, perhaps averaging different polls of debate viewers, this market will resolve based on that coverage.

I will update this criteria as we learn more about the first debate and 538's coverage.

Resolves N/A if there is no debate between Biden and Trump, or if 538 does not do post-debate coverage with debate viewer polling.