Trump dies like a month or two before the election

This throws the trump/qanon base into chaos. Some dive deeper into their fantasies, trump isn't dead he faked his death so he could do covert ops and lead the white hats. Others lose their minds and accuse the deep state of assassinating him. There's isolated incidents of stochastic terrorism, but mostly his base is too cowardly and unorganized to do anything, plus they'd rather watch their shows than take any action, so nothing really happens except for a brief increase in funny/sad facebook screenshots.

All the chaos results in Biden being reelected.

Biden dies like the day after he's inaugurated.

Biden's new VP becomes president. Finally, we have the best woman for the job!