U.S. national-security leaders included me in a group chat about upcoming military strikes in Yemen. I didn’t think it could be real. Then the bombs started falling.

Military experts said that Hegseth's Signal texts included sensitive operational details about military action, which is akin to a plan.

Adding to the extraordinary nature of the story is that Goldberg is hardly regarded as a friendly figure in the president’s inner circle. Trump previously has targeted Goldberg and The Atlantic, including last year when the media outlet published a report on how the president had derisively referred to soldiers who had died in wars.