Biden can’t decide anything, including what flavor of oatmeal he will be served by his handlers.
The lack of a choice at this late date points to an ongoing power struggle among his handlers.
Jill Biden is probably part of the “moderate” team, Sanders and AOC supportesr part of the “radical” team, and neither faction has subdued the other yet.
Actually, I think there is a power struggle BETWEEN wannabe handlers.
Most people don't know as many Democrats as I do. There has been a low level civil war between Clintonites and Obama people for more than a decade.
Like most civil wars, fat times (2009-2017) suppress conflict, lean times bring out the knives.
Just as Trump did not anticipate COVID and had to reinvent his campaign, the same is true of the Democrats. If things in February were as they are now, Biden wouldn't be the nominee, he'd be in a nursing home. But when COVID exploded, and by the time the Democrats realized that everything would be different in the Fall, it was too late.
This is why Susan Rice, natural born citizen of the permanent government, has surged to the fore.
She's the unity candidate. She's BOTH a Clintonista AND an Obamatron. She's much too privileged to fully adopt a BLM - Year Zero program when she becomes President, but she CAN and she WILL destroy the stupid "Trump-black voter" plan.
It's taking so long because the people who were planning to run a very implausible "Biden administration" are being pushed out by a group that now believes they can actually win and take power, and neither side has won yet.
Makes sense. If they want to win the General Election, they need to appear to be moderate.