1. Being presidential is easy, President Trump said: “All you have to do is act like a stiff.”

So instead, at his latest campaign rally in Dallas, above, Mr. Trump called the speaker of the House “crazy,” a rival candidate “very dumb,” a House committee chairman a “fraud” and the governor of another state a “crackpot.”

After 1,000 days as president, our chief White House correspondent writes, Mr. Trump’s capacity for surprise has long diminished. Comments or actions that would have sparked howls from Capitol Hill now barely register.

But some Republicans did speak out with concern about Mr. Trump’s acting chief of staff, Mick Mulvaney, who effectively confirmed the main premise of the impeachment inquiry — that military aid had been put on hold in order to pressure Ukraine — and then denied it.