None, yet. MD and (I think) NJ have some kind of deal on the books where there electors will go with the popular vote once a 270 majority agrees. Or something like that. This is something to keep an eye on though, as it appears to be a movement afoot to undermine the electoral college. And have no doubt that the rules would change depending on if it’s a Dem or a Repub who wins the popular vote.
"Show me just what Mohammed brought that was new, and there you will find things only evil and inhuman, such as his command to spread by the sword the faith he preached." - Manuel II Palelologus
Yes, NJ did this to go with the popular vote after the Gore mess. Not that we voters got a chance to vote on this concept, however. Infuriating.
It does bring to mind that only three people would have to vote to elect a president.