I'm pretty sure this is what will happen pretty soon:

#1 Joe Biden will announce drop out.

#2 Kamala Harris will run and Biden will endorse her, but she won't be the picked nominee, instead the Dems will put up someone else who wants war.

#3 RFK will drop out, Endorse Trump, and take a spot in Donald Trump's Cabinet.

Donald Trump will proceed to run against whoever the Dems put up and in a fair election, eventually win.

Not necessarily in that order though.