Mr. Trump called Jensen Huang, Nvidia’s chief executive, while Mr. Huang was onstage in Los Angeles and criticized calls to slow down and regulate A.I.

The landmark legislation, known as the Clarity Act, stalled in the Senate as Democrats raised concerns about President Trump’s personal investments in crypto.

© Alex Kent/The New York Times

Federal prosecutors said proceeds from the sale of Iranian oil flowed through Binance, the world’s largest crypto exchange, to finance terrorism.