Congressional Republicans are grappling with how to respond to senior Trump administration officials’ use of a Signal group chat to discuss a military strike, with a key Senate committee requesting a watchdog probe of the matter as some in the GOP say there’s no need for further investigation.

National security officials inadvertently added Atlantic editor Jeffrey Goldberg to a Signal group chat discussing military operations against Houthis in Yemen. Officials maintain the chat contained no classified information or war plans, with Elon Musk offering technical experts to investigate how Goldberg was added.

White House press secretary Karoline Leavitt said Monday that national security adviser Mike Waltz continues to have President Donald Trump’s confidence and that it was done discussing the embarrassing matter of senior officials communicating about plans for an airstrike on a commercial messaging app.