I see Trump as being in the oldest subset of boomers and is currently age 69. He would be 70 at the time of the general election and his possible inauguration as the 45th President of the US.
In spite of his rather brusque manner, he’s got such lofty ideas on how he will “make this country great again” with a pretty good understanding in his head of most of the issues. It would be terrible for the country to find him exhausted and with high blood pressure by the time he might finally get the chance to do so.
