President Donald Trump’s national security advisor, Mike Waltz, has repeatedly landed in hot water in recent days, beginning with an uproar from Democrats over a Signal chat leak with high-ranking national security officials that has since snowballed,

The Trump administration's IT team members investigated how Atlantic editor-in-chief Jeff Goldberg was added to a Signal group chat with high-ranking senior officials.

The national security adviser's use of the messaging app is under scrutiny after he mistakenly added a journalist to a sensitive chat.