Harris was also picked as a nod to African-Americans, since they are the ones who rescued Biden's fading chances before the South Carolina primary. One of the chief problems the Dems have created for themselves is a lack of an upcoming generation of people to hold office. Pelosi is 80. Biden is 78. Schumer is 70. Hillary Clinton is 73. They clung to power and failed to groom the next generation of office-holders. The scenario you paint for 2024 is exactly what I think will happen.