The Vice President will need to step in and replace President Trump in 2024.
Jeff Sessions, as good as he is, is going to be is going to be 78 when sworn in, and at least 82 at the end of his first term.
That is a big downside. Sessions is too old. Duncan Hunter might work.
Sessions could fill one term VP and should Trump run again, he could then choose a VP fitting the needs he sees for a VP at that point - and that person may be able to run in 2024.
People need to stop thinking everything has to be so precisely calculated to fit what has been the norm. Trump is presumptive nominee - is that “normal”?