Senators questioned ex-Trump national security adviser Michael Waltz at confirmation hearing about a Signal chat that contained sensitive information.

WASHINGTON — White House national security adviser Mike Waltz is leaving the administration just weeks after it was revealed he added a journalist to a Signal chat being used to discuss military ...

Democrats will likely zero in on Mike Waltz's involvement setting up a Signal group chat to discuss plans about strikes against the Houthis during his confirmation hearing for U.N. ambassador.

Mike Waltz, former national security adviser who left in the wake of the Signal chat controversy, faced confirmation hearing for UN ambassador.

Mike Waltz, former national security adviser who left in the wake of the Signal chat controversy, faces a confirmation hearing for United Nations ambassador.