Mark Halperin posits that the 6 must-win states for Trump are Florida, Georgia, North Carolina, Ohio, Iowa, and Texas. If Biden is declared the winner in any of the 6 - a feat that wouldn't leave him "the least bit surprised" - he believes the race is politically (if not, in fact, mathematically) over. If, however, Trump wins all 6 - as he did in '16 - that would put him at 247 electoral votes, two or three states away from enough to win. If that were to happen, Halperin notes the following:
"Odds are that at that point, legal action and rumor mongering would commence and the newly-configured Supreme Court could deliver to the president the final 23 electoral votes he would need under the Trump-wins-all-the-Significant-Six scenario.
No matter what the margin of the count is in the remaining battlegrounds, on, say, November 5, Trump could easily start down two tracks, suing and spreading rumors about alleged casting and counting shenanigans and keep the hunt alive."