This question is inspired by this other question.
Suppose a state determines that a major party candidate should not be on their presidential general election ballot, perhaps because they believe it would be in violation of the 14th Amendment. What should they do instead for that party?
Would they omit the party entirely? This effectively hands their electors to the other major party, since a third party candidate has virtually no chance of being elected, and disenfranchises voters who wanted to vote for this party.
Would they keep the party on the ballot, and name their own candidate in place of the one the party chose?
Or would the ballots simply say something like "Electors for X Party" without a candidate name, since that's technically what you're always voting for. But if that's done, what's the point of leaving the candidate off the ballot? The electors still choose who to vote for in the Electoral College, and the voters know who they'll select in "X Party". Would removal of the candidate also direct the electors not to vote for them?
Since the details of voting are governed at the state level, I imagine there may be a variety of solutions. Have they been codified in state laws, or would we be in unprecedented and unforeseen circumstances should this occur (which is a distinct possibility, as there are now court cases in several states challenging Trump's eligibility)?