Defenese Secretary Pete Hegseth, national security adviser Mike Waltz and more of the contacts who appeared in the Signal ...

As senior officials deny wrongdoing, rank-and-file national-security personnel worry about the dangers if no one is held ...

U.S. Defense Secretary Pete Hegseth again on Tuesday dodged questions about whether the information he put in a Signal group ...

Sens. Tammy Duckworth and Dick Durbin, Gov. JB Pritzker and U.S. Reps. Raja Krishnamoorthi, Mike Quigley, Jonathan Jackson, ...

The president is privately upset with the sloppiness of his advisers. Publicly, he’s focused on attacking the press.

The administration has downplayed the importance of the text messages inadvertently sent to The Atlantic’s editor in chief.

The president’s officials must know that what they did in the Signal group chat was wrong—and dangerous.

After following America’s lead for 80 years, the continent’s democracies do not recognize the danger now before them.

In a report by the Wall Street Journal, Hegseth is accused of bringing his wife to two meetings involving foreign officials.

When the president talks about security in the Arctic, he’s talking about climate change.

The Signal security breach would be bad enough if those involved had not spent so much time criticizing Hillary Clinton for ...

U.S. national-security leaders included me in a group chat about upcoming military strikes in Yemen. I didn’t think it could ...