NEW YORK — Stormy Daniels, the adult-film actress at the center of Donald Trump’s hush money trial, testified Tuesday about a disturbing sexual encounter she says she had with him, leading to angry, profane muttering from the former president that alarmed the judge.

New York Supreme Court Justice Juan Merchan called Trump’s lawyer Todd Blanche to a sidebar during a midday break to say that Trump was “cursing audibly” and possibly intimidating Daniels, who had begun testifying, according to a trial transcript.