What event or events could possibly re-elect Trump now?
Given his "narcissistic" personality, Donald J Trump will never be able to accept being voted out of office and assuming that he will be facing multiple criminal prosecutions at the state and federal levels once he becomes a private citizen, this President will do everything in his power legally and/or otherwise to remain in office for a 2nd term!
In addition to the traditional Republican playbook that attempts to suppress the Democratic vote, Trump will be focusing on Arizona, Florida, Michigan, North Carolina, Pennsylvania and Wisconsin - all those swing states that allowed him to win a majority in the Electoral College, despite receiving 3 million fewer ballots in the national popular vote!
Trump is also quite capable of creating a constitutional crisis by declaring the 2020 Election to be "rigged" and therefore not legally binding, or he could use the COVID-19 Pandemic to declare a national emergency, impose martial law and attempt to hold the election at some later date, more favorable to his re-election chances!
Even if Trump were to allow himself to be voted out out of the White House, I predict that he would negotiate a deal whereby he would voluntarily relinquish office peacefully a few days before the end of his term, on the condition that Acting President Pence would grant him a presidential pardon or commutation - assuring that he would never serve jail time!