Biden:

“I feel good and all I can say is, watch me, you’ll see,” he said. “It doesn’t mean I would run a second term. I’m not going to make that judgment at this moment.”

I mean he did, then rolled back on it but before his election.
But that’s fair I didn’t hear the rollback and he took it back before he was even elected. It doesn’t make his Staffers saying he is too old to run again in 2024 all the way back in 2019 look very good though.