Flash-forward 6 months... Trump has not only won, he's won more states in the Electoral College than before, he's won over 51% of the popular vote this time too, the Republicans keeps the Senate and take back the House. How would you react? What would you think/feel?
This is incredibly unlikely to happen. However, I can see a scenario playing out where Trump wins a decisive victory in the electoral college and Republicans get close to taking the House. I think for that to happen you'd have to have a few things happen, mainly...
1) Biden doing terrible in debates and/or revelations about scandals/corruption a few weeks before election
2) A bad across the board polling error, WORSE than 2016, akin to what happened in Australia in 2019.
3) The economic recovery is more swift and the numbers are better than anyone expected (and no signs of 2nd wave before November)