National security advisor Mike Waltz said he accepted “full responsibility” for a high-level Trump administration planning chat about strikes against Houthi rebels in Yemen being accidentally shared ...

Washington — Ambassador to the United Nations Mike Waltz said Sunday that "all options should be on the table and the president's made that very clear" after President Trump threatened to destroy Iran ...

Mike Waltz was fired as national security advisor after being caught using the encrypted messaging app Signal during a Cabinet meeting, despite prior warnings and a previous scandal involving a Signal ...

President Donald Trump has named Mike Waltz as his next nominee for the U.S. ambassador to the UN after ousting him as his national security adviser.

The following is the transcript of the interview with Mike Waltz, U.S. ambassador to the U.N., that aired on "Face the Nation ...