"Trump may not want to rule out a third term but the 22nd Amendment to the Constitution does," one expert told ABC News.

On the prospect of a third presidential term, Trump says "There are methods which you could do it." The Constitution says otherwise.

Trump is a lame duck president in his final term. Because termed-out politicians will never be on the ballot for the same office again, their political clout usually wanes quickly. The third-term flirtation is a way to try to convince people that Trump will be around in the future.