Is he a disease or a cure? Like him or hate him, there’s tons of spilled ink trying to assess President Trump’s governing style. To me, the key to understanding Trumpism is remembering why he was elected.

What do I mean? Voters chose Donald Trump as an antidote to the growing inflammation caused by the (OK, deep breath . . .) prosperity-crushing, speech-inhibiting, nanny state-building, carbon-obsessing, patriarchy-bashing, implicit bias-accusing, tokey-wokey, globalist, swamp-creature governing class—all perfectly embodied...