The Democrats had enough of the polls and the likely outcome in Nov 24. Last night Biden was taken out to the shed and put out of his misery.
Joe Biden 'has handed the White House to Trump', says Democrat challenger - latest updates (telegraph.co.uk)
We are now taking bets who is going to run Newsom? Harris?
Trump is basically the only candidate that Biden could beat. Fitting, since Biden is maybe the only hope Trump has of not losing again.
These two assholes are buried into their parties like bloodthirsty ticks, so obsessed with their personal need to beat each other, the very suggestion someone else could do that better is treated as disloyalty.
So their parties are dumb enough to basically not allow any other alternatives to take shape - despite the fact that is clear and obvious the American people want neither of these guys anymore.
The Democrats may be in more trouble though, since they are not even having the dog-and-pony-show of a primary competitor to Biden. (The GOP still has Haley who is obviously angling to be VP.)
Thanks to that, most of them are quietly wishing Biden to have some big health problem that takes him out of the race suddenly, without the party needing to do some kind of mea culpa about their party leadership cadre or their ineffective sales pitch.
Now, of those two alternative choices to Biden (Harris or Newsom, both from California), only Newsom seems like he could do it. So naturally the DNC would rather have Harris because they refuse to see how unlikable she is. This is a common disease with that party recently. Even if they have the better policies for the most part, they focus on the wrong things & wrong people and try to sell those, getting dragged into pointless fights that can't be won by personalities that are off-putting and unrelatable.
The age issue hits Biden worse than Trump, even though both are way past their expiry date, because Biden's ideology requires him to be sharp, realistic, and level-headed (he is only ever 2 of these things at a time), while Trump needs to just go on being the biggest most obnoxious asshole he possibly can, which is very easy. He gets politically stronger the more fucked-up his behavior is.
Lowest common denominator politics - you sink to whatever level you can force voters to accept.