President 45.5 in Waiting

If he kicks too soon he won't get appointed president and Trump'll win.

No, unfortunately the DNC can pick who they're putting in his place. So, most likely KH as POTUS and HRC as VPOTUS.

They'd have zero electoral votes and thus cannot become president in that way..

Either the Democrat party tells its electors to vote Kamala for president or Trump wins the presidency with a divided Democrat electoral college with Kamala as VP.

New House picks President. Each State gets one vote. Senate picks VP. Trump would get 26 to 30 states.

Yeah, I forgot that you need all 270 to win no matter what as of now.