If Trump actually tries to run for a third term, who would have to say no to him to stop it from happening?

Updates
1 mo
Many people seem to think that the fact that the Constitution forbids a third term means that it automatically can't and won't happen. Nothing can be further from the truth. Law has to be enforced in order for it to be effective, and at this point there is nobody that's going to enforce that law.

A law that cannot be enforced is not a law. It's a suggestion. Do you think Trump listens to suggestions?
If Trump actually tries to run for a third term, who would have to say no to him to stop it from happening?
Post Opinion