What will the winner of the election win? Resolution should be straightforward, but here's some examples:
Trump wins Georgia and election -> Georgia resolves YES
Harris wins election but with only 287 EVs -> More than 300 Electoral Votes resolves NO
Market closes before voting day. It resolves as soon as results are known. Faithless electors do not count for resolution.
In 2020, the result was 25-25.
So if Trump wins, the chances that he wins a majority of states are basically 100%, since the only way he can win is by exceeding his 2020 performance, and there's no way he could realistically do that while losing more states than he picks up (He would have to win California or New York or something like that in order for this to occur, but even if that happened, he would win in a landslide with a lot more than 25 states).
Harris can win with fewer than 26 states - if she holds the Rust Belt but loses all the Sun Belt swing states, she'll have only 22 but win the election. But she has a shot at 26 if she wins the Biden states + North Carolina, and of course, it's also possible that a bigger surprise happens where she wins one of the tougher red-leaning states.
@bagelfan resolves YES if the potus winner wins a publicized game of monopoly between now and the election.
@Nightsquared use criteria from this market: https://manifold.markets/jacksonpolack/if-kamala-harris-debates-donald-tru