What if one or more states decided to hold the GE on a different day?

[Beefalow and the Consumer]

If, say, Ohio or Florida decided to hold their Presidential election on November 10th, after all the other electoral outcomes were known, would anyone be able to stop them?

[LLR]

I've wondered this in the past.

[Unconditional Surrender Truman]

If, say, Ohio or Florida decided to hold their Presidential election on November 10th, after all the other electoral outcomes were known, would anyone be able to stop them?

Yes - doing so would explicitly violate federal law. They're free to hold Congressional/other elections on a different date, though.

[SteveRogers]

Yes. The election date is set by federal law. The Constitution gives congress the power to "determine the Time of chusing the Electors, and the Day on which they shall give their Votes; which day shall be the same throughout the United States."

[catographer]

Perhaps they could have the vote on GE day, but then make state law say that electors are not bound to those results but instead to the results of a newly-created beauty-contest on December 10th or something that would bind the electors.

[Attorney General, LGC Speaker, and Former PPT Dwarven Dragon]

Perhaps they could have the vote on GE day, but then make state law say that electors are not bound to those results but instead to the results of a newly-created beauty-contest on December 10th or something that would bind the electors.

Electors aren't bound in the sense that delegates are. Even in states that try to punish faithlessness, the vote of the elector still counts as it was cast, not as it should have been cast. The reason faithlessness is virtually non-existent is 1) the electors are very partisan individuals selected by political parties, and 2) The understandable public uproar that would arise from faithlessness changing the winner of the election.

[True Federalist (진정한 연방 주의자)]

It used to be the case. The longest hold out was Maine. Even after Congress used its power to put the national election on the same day in all states, Maine continued to hold its statewide general elections in September into the 1950s. Its gubernatorial races were the origin of the phrase, "As Maine goes, so goes the Nation" until the 1936 election rewrote it as "As Maine goes, so goes Vermont."