There are states (I believe Illinois is one) which have “sore loser” statutes prohibiting the listing on the ballot of any candidate who has run in the primary of a major party and then wishes to run third party. In how many states will the “Constitution” Party forfeit ballot status if it goes with this latest dishonest delusion of paleoPaulie and the Paulistinians.
This is very interesting, I had no idea those statutes existed. I found this Minnesota tidbit which discusses it in a little further detail:
http://www.house.leg.state.mn.us/hrd/pubs/indcand.pdf
Ohio and California have this statute. I will try to obtain a complete list of states that do.
Sore loser laws probably only apply to state and local offices.
My limited understanding of the law is that states can not add extra qualifications on top of those already in the Constitution when it comes to federal office and electors.