Donald Trump hasn’t talked much about policy in this election cycle, except for vague assertions that he’ll somehow bring back low unemployment and low inflation — which, by the way, has already happened. (Unemployment has been at or below 4 percent for almost two years. Thursday’s report on consumer spending showed the Federal Reserve’s preferred measure of underlying inflation getting close to its 2 percent target.) Most of his energy seems to be devoted to the prospect of wreaking revenge on his political opponents, whom he promises to “root out” like “vermin.”

Nonetheless, over the past few days, Trump has declared that if he returns to the White House, he’ll once again seek to do away with the Affordable Care Act, the reform that has produced a significant decline in the number of Americans without health insurance.

Why this renewed assault? “Obamacare Sucks!!!” declared the former and possibly future president. For those offended by the language, these are Trump’s own words, and I think I owe it to my readers to report what he actually said, not sanitize it. Trump also promised to provide “MUCH BETTER HEALTHCARE” without offering any specifics.

So let’s discuss substance here. Does Obamacare, in fact, suck? And can we believe Trump’s promise to offer something much better?