22nd Amendment: "1: No person shall be elected to the office of the President more than twice, and no person who has held the office of President, or acted as President, for more than two years of a term to which some other person was elected President shall be elected to the office of the President more than once. But this article shall not apply to any person holding the office of President when this article was proposed by the Congress, and shall not prevent any person who may be holding the office of President, or acting as President, during the term within which this article becomes operative from holding the office of President or acting as President during the remainder of such term."
Like, I know the impulse now is to just assume that Trump can do anything he wants, but no court in the land is going to deny what is written right there in the 22nd Amendment. If you want to be paranoid and say "well, he could get around the 'elected' part by just abolishing elections," well....if we are at the point where he is trying and succeeding in getting rid of elections altogether then we are already too far gone for any of the rest of it to matter.
My opinion - he is just talking shit like an idiot as always, despite my belief that he would love nothing better than to be a dictator in his heart of hearts.