Derek Harvey, a military intelligence analyst and retired U.S. Army colonel, is expected to be named senior director for ...

A third top Pentagon official was placed on administrative leave Wednesday in the fallout of a major leak of sensitive U.S.

President Donald Trump's second administration has not been lacking in scandal. One of the largest incidents recently ...

Cultivating and rewarding expertise and integrity inside the White House are out, while passing loyalty tests and expending ...

CEO Nicholas Thompson on the editorial independence that shaped the magazine's blockbuster story—and the business risks of ...

National security advisor Michael Waltz commented on the Signal text chain leak during an appearance on "The Ingraham Angle." ...

Former national security officials reacted with shock and horror to revelations in The Atlantic that top members of President ...

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

Why was the national security adviser doing the tedious administrative work of setting up a chat group that should have been ...

The White House’s assertion that the case is closed surrounding national security officials’ use of Signal is getting pushback in Congress, even among some Republicans who say their own probes ...

Democratic lawmakers heaped criticism on the administration for handling highly sensitive information carelessly.

Warner noted the timing, coming a week after Trump’s national security officials faced backlash to reporting about their use ...