As veep candidate on a Trump ticket Uncle Ben would bring little to no professional organizational cadre, no heavy-hitting corporate or individual financial backing, no recognizable voting base.....and a too-small home-state electoral vote (Maryland-10 votes vs. Cruz's 38-Texas).
Plus, if Jeb is considered by Trump to be "low-energy", he (Bush) looks like a human dynamo compared to His Sweetness, Ben Carson.
In short, the ticket will be put together by Trump along with his staff of hardened, steely-eyed professionals who play all the angles to win.....and the ticket will not be fashioned by emotions nor by political romantics who are understandably taken by Ben's intellect, his understated style and his warm smile.
Leni
Nicely stated.