Be still my beating heart.

 1. Trump runs for a house US Congressional seat from Florida, and wins.

2. Enough Trump Republicans run and win to take a majority of US House seats, and 2/3 of the US Senate.

3. After the US House is sworn in, in January, 2023, they elect Trump speaker of the House of Representatives.

4. After Trump becomes Speaker,
Articles of Impeachment are filed against Biden and Harris. Burisma alone would suffice for Biden. Harris probably has something in her background that would suffice.

5. The Senate votes 2/3rd to remove Biden and Harris.

6. The Speaker of the House (Trump) becomes President in January or February, 2023.

Because Trump serves less than 2 years, he is eligible to run again in 2024. We could, if Republicans grow a spine, enjoy almost an entire decade (albeit interrupted by 2+ years of Biden) of Trump as our president. Unfortunately, the Republicans are unlikely to grow a spine.