roue4gay'

Biden is running again because people in comfortable and powerful positions stay unless pushed. And no one had the inclination, bravery, or weight to lever Joe out of the way.

The consequences could be a return of Trump and his dangerousness to America and the world.

So, to answer your question -- vanity, complacency, and cowardice. Another is a lack of imagination for another to do the job.

It's not impossible, but it's now late to move Biden aside. But a bold move can be made to strengthen the ticket. I invite you to read "Biden Needs Help to Win 2024."

Best.