Vivek Ramaswamy thinks he can separate ‘America First’ from Donald Trump. But does anyone want to?

Vivek Ramaswamy has the confidence and energy of a true believer. Over the weekend he criss-crossed Iowa on an intense multi-day bus tour that featured early mornings, late nights, hours of shaking hands, play time with his young children, and some tennis. He seems to have a perpetual bounce in his step.

What’s the belief that has him so excited? That there is a world beyond Donald Trump, one that painstakingly takes the lessons he’s taught the right and distills them into a clear formula to pass on to the...