Looks like the Biden people are floating this to make everyone more comfortable with his campaign.
That might not be a bad idea. It’s pretty clear he’s not up to the task of being president for one term, so assuring people he won’t run for a second might make some feel better about voting for him. Eight years of Biden not knowing where he is, what year it is, or who the hell he is talking to would be too much even for the most diehard Trump hater.
He won’t make an official announcement, though, because it would turn him into a lame duck the moment he is elected.
According to Politico:
Former Vice President Joe Biden’s top advisers and prominent Democrats outside the Biden campaign have recently revived a long-running debate whether Biden should publicly pledge to serve only one term, with Biden himself signaling to aides that he would serve only a single term.
While the option of making a public pledge remains available, Biden has for now settled on an alternative strategy: quietly indicating that he will almost certainly not run for a second term while declining to make a promise that he and his advisers fear could turn him into a lame duck and sap him of his political capital.
According to four people who regularly talk to Biden, all of whom asked for anonymity to discuss internal campaign matters, it is virtually inconceivable that he will run for reelection in 2024, when he would be the first octogenarian president.
“If Biden is elected,” a prominent adviser to the campaign said, “he’s going to be 82 years old in four years and he won’t be running for reelection.”
The adviser argued that public acknowledgment of that reality could help Biden mollify younger voters, especially on the left, who are unexcited by his candidacy and fear that his nomination would serve as an eight-year roadblock to the next generation of Democrats.
By signaling that he will serve just one term and choosing a running mate and Cabinet that is young and diverse, Biden could offer himself to the Democratic primary electorate as the candidate best suited to defeat Trump as well as the candidate who can usher into power the party’s fresh faces.