Karoline Leavitt, the White House press secretary, on Wednesday said that Elon Musk is helping to probe how a top official added a reporter to a sensitive national security discussion.

“The National Security Council, the White House counsel’s office, and also, yes, Elon’s team,” Leavitt said in response to a question about who is looking into the matter. “Elon Musk has offered to put his technical experts on this to figure out how this number was inadvertently added to the chat. Again to take responsibility and to ensure this can never happen again.”

On Tuesday evening, Michael Waltz, the White House national security advisor who’s at the center of the scandal, said Musk had offered his assistance in figuring out what happened. It’s the latest role for Musk, President Donald Trump’s self-described “tech support” and the de facto DOGE office leader.

“We’re going to get to the bottom of it. We have— I just talked to Elon on the way here,” Waltz said on Fox News. “We’ve got the best technical minds looking at how this happened. But I can tell you, I can tell you for 100% I don’t know this guy.”

While serving as a White House senior advisor, Musk has remained chief executive of Tesla, SpaceX, and xAI.

Jeffrey Goldberg, the editor in chief of The Atlantic, published a bombshell report on Tuesday detailing how he had been inadvertently added to a Signal group chat that discussed details of a planned US strike on Houthi rebels. Since then, the White House has tried to downplay the details discussed in a chat that included officials as high up as Vice President JD Vance.

On Wednesday, after Trump said no classified information was disclosed in the chat, Goldberg published screenshots of messages that showed Defense Secretary Pete Hegseth naming specific times and weapon systems that would be used. The White House and Pentagon said the airstrikes were successful.

Sen. Roger Wicker, the top Republican on the powerful Senate Armed Services Committee, which oversees the Pentagon, said his panel is asking an inspector general to probe the matter. Trump recently fired the Pentagon’s inspector general, essentially a watchdog within the government, though the role has been filled on a temporary basis.

It’s unclear what kind of technical expertise would be necessary to investigate the situation. Goldberg’s screenshots show Waltz adding him to the chat. Signal, a secure messaging platform, allows users to add participants to a group chat. On Wednesday, Trump said “a bad signal” could have been at fault.

Trump and his allies have closed ranks around Waltz. The president has called him “a good man” and so far has expressed his faith in the embattled former GOP congressman.

The White House national security advisor is a powerful position, though it does not require Senate confirmation. During his first term, Trump went through four top national security officials and two acting advisors.