White House mistakenly shares Yemen war plans with a journalist at The Atlantic

Top Trump administration officials mistakenly disclosed war plans in a messaging group that included a journalist shortly before the U.S. attacked Yemen's Iran-aligned Houthis, the White House said on Monday, following a first-hand account by The Atlantic, Reuters reports.

Democratic lawmakers swiftly blasted the misstep, saying it was a breach of U.S. national security and a violation of law that must be investigated by Congress, according to Reuters.

The Atlantic's editor-in-chief Jeffrey Goldberg said in a report on Monday that he was unexpectedly invited on March 13 to an encrypted chat group on the Signal messaging app called the "Houthi PC small group." In the group, national security adviser Mike Waltz tasked his deputy Alex Wong with setting up a "tiger team" to coordinate U.S. action against the Houthis.

National Security Council spokesperson Brian Hughes said the chat group appeared to be authentic, Reuters reported.

U.S. President Donald Trump launched an ongoing campaign of large-scale military strikes against Yemen's Houthis on March 15 over the group's attacks against Red Sea shipping

Hours before those attacks started, Defense Secretary Pete Hegseth posted operational details about the plan in the messaging group, "including information about targets, weapons the U.S. would be deploying, and attack sequencing," Goldberg said. His report omitted the details but Goldberg termed it a "shockingly reckless" use of a Signal chat.

Accounts that appeared to represent Vice President JD Vance, U.S. Secretary of State Marco Rubio, CIA Director John Ratcliffe, Director of National Intelligence Tulsi Gabbard, Treasury Secretary Scott Bessent, White House chief of staff Susie Wiles, and senior National Security Council officials were assembled in the chat group, Goldberg wrote.

Trump told reporters at the White House that he was unaware of the incident. "I don't know anything about it. I'm not a big fan of The Atlantic," Trump said. A White House official said later that an investigation was under way and Trump had been briefed on it.

The NSC's Hughes said in a statement: "At this time, the message thread that was reported appears to be authentic, and we are reviewing how an inadvertent number was added to the chain."

"The thread is a demonstration of the deep and thoughtful policy coordination between senior officials. The ongoing success of the Houthi operation demonstrates that there were no threats to our servicemembers or our national security."

Hegseth denied sharing war plans in the group chat.

"Nobody was texting war plans, and that's all I have to say about that," he told reporters while on an official trip to Hawaii on Monday, according to Reuters. 

Goldberg responded to Hegseth's denial in an interview on CNN late on Monday by saying, "No, that's a lie. He was texting war plans."