President Trump threatened Wednesday to retaliate with a “warlike posture” should the new Democratic House majority use its subpoena power to launch investigations into his administration, warning that any probes would jeopardize prospects for bipartisan deals. . . .

“I could fire everybody right now, but I don’t want to stop it because politically I don’t like stopping it,” Trump said. “It’s a disgrace. It should never have been started, because there is no crime.”

Trump answered questions from journalists for an extraordinary one hour and 26 minutes in a rare formal news conference in the East Room of the White House. He repeatedly lost his cool as reporters peppered him. He attacked CNN’s Jim Acosta, calling him “a rude, terrible person” and saying his network should be “ashamed” of him, and then snapped at Peter Alexander of NBC News and directed April Ryan of American Urban Radio to “sit down.”