Anti-Trump conservatives are saying if its so easy why didn't you do that when you were president the first time. He has no answer for that. Not to mention the legal and congressional challenges this would stir.
But I think this highlights a problem we have to face: at some point we're gonna have another republican president, and it's unlikely that person will be a "normal" republican. It'll be a Trump-esque figure. And that person won't do all of the things mentioned in those articles, but he will do enough to stir a major showdown in this country. We're at a point where I'm not sure anyone can justify not voting. What do you think happens when a republican president gets in and tries to turn Medicaid into block grants, allowing states to simply dismantle the program. It'll face legal challenges but if you've stacked the Supreme Court with enough acolytes maybe you get away with it.