He hasn’t taken office yet, but Donald Trump is lost, wandering in a labyrinth of lies and trying to drag the country in with him.

Witness his reaction to being called out on Sunday by Meryl Streep. Speaking at the Golden Globes, she said she had been stunned and heartbroken to see him mock a reporter with a physical disability.

It happened at a speech in 2015 in South Carolina. Mr. Trump’s target was Serge Kovaleski, of The Times, who has arthrogryposis, a condition that leaves his right arm and hand bent and rigid. “You ought to see this guy,” Mr. Trump told his audience, flailing his own right arm and hand in the air, making spastic movements, disgracing himself. The act was contemptible, and in a way unbelievable: a future president showing the maturity and schoolyard viciousness of an 8-year-old.