Trump picked Pence because he needed to be able to convince Evangelicals who were not at all sure about a guy who was known as a playboy billionaire from New York. It was a smart choice in terms of getting him elected. Of course, Pence who was with the RINO Establishment all the way started working to undermine President Trump the moment he got in office.
Now everybody knows Trump delivered for them. They don’t need to be convinced nearly as much. He doesn’t need to select a RINO like Pence this time. In fact, it would be very stupid and dangerous to do so given how much the Deep State hates him and views him as an existential threat. By far the safer choice would be to select someone the Deep State is equally if not more frightened of.
General Flynn.