President Joe Biden faces an uphill battle in 2024 should he run for reelection, as 64% of Democratic voters would prefer a new candidate in the 2024 presidential election.

Biden, 79, is the oldest U.S. president in history, and while he has insisted numerous times he will run for reelection, his age is a top concern for voters who want the party to find someone else, including 94% of Democrats under the age of 30 who would prefer a different nominee, according to a New York Times/Siena College poll released Monday.