In the valet’s account, laid out in a transcript obtained by The New York Times, an agitated Mr. Trump pressured Mr. Pence to overturn the election and stewed about Mr. Pence’s refusal for hours after violence engulfed Congress. Told that a civilian had been shot outside the House chamber amid the mob attack, he recalled, Mr. Trump appeared unconcerned.

“I just remember seeing it in front of him,” the valet said of a note card Mr. Trump was given bearing news of the casualty as he watched the riot unfold on television. “I don’t remember how it got there or whatever. But there was no, like, reaction.”