Given the headlines which say he did you might wonder why I ask if Biden has quit his attempt to get reelected.

But look at 'his' rather weird letter which was distributed via the Joe Biden campaign X/Twitter account.

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There is no official letterhead. The formulations are obviously not by Joe Biden and the signature looks canned.

I doubt this Politico account which claims that Biden posted the letter all by himself:

Steve Ricchetti, who’s been with Biden since his days in the Senate, drove to see the president at his house on the Delaware shore on Friday.
…
In addition to presenting new concerns from lawmakers and updates on a fundraising operation that had slowed considerably, they carried the campaign’s own polls, which came back this week and showed his path to victory in November was gone …
…
The only other people with Biden in the residence when he arose Sunday were first lady Jill Biden and two other trusted aides: deputy chief of staff Annie Tomasini and assistant to the first lady Anthony Bernal. At 1:45 p.m., he notified a somewhat larger group of close aides that he had decided the night before to end his quest for another term, reading his letter and thanking them for their service. A minute later, before any other campaign and White House staffers could be notified, he posted the historic letter from his campaign account on the social media site X.

This says that Ricchetti, Biden's aide, wrote and posted the letter.

There was no speech and no press conference. People working on Biden's campaign had no pre-warning.

Biden allegedly endorsed Vice President Kamala Harris as the new Democrat candidate for the presidency.

Let's remember that Harris, of Asian/Indian decent but playing black, is a former California prosecutor who failed in 2020 to get any votes in the primaries. Biden selected her as his vice because she was a woman of color not because she is a person fit for the job.

What does it say about a democracy when some obscure party functionaries and billionaire donors contradict the will of the primary voters and decide against another presidency for Joe Biden?

What does it say about a democracy when similar powers install a new candidate who is by no means qualified and has never received any votes?