mdgoonah41 — it’s a touch “chicken and egg” in that we don’t really know if Biden wanted to run, or if the DNC though he was the best candidate.
Regardless, whoever made the decision got it wrong.
The challenge is that the Dems need to find someone who can win the swing states. There’s little that unites Arizona, Nevada, Georgia, North Carolina, Wisconsin and Pennsylvania. However, I’m not sure a gay nominee (no matter how qualified and intelligent both are) will resonate to moderate voters in most of those states. From there you look to Newsom or Whitmer, and neither feels that strong either.