I'm imagining massive pressure on Biden to concede before mail-in votes are counted, maybe combined with a 2000-style lawsuit that delays things even more.
Not outside the realm of possible, but why do that if you can achieve the same goal in subtler ways? 2000 was a “close call” because 10s of thousands of people in primarily-black communities in florida had their voting infra degraded to the point of uselessness. Voting infra is a proven strategy to tip the scales towards the kleptocrats