Dan Caldwell was listed as the Pentagon's point of contact by Defense Secretary Pete Hegseth in the infamous Signal group ...

WASHINGTON — The Pentagon inspector general announced Thursday that it has launched an investigation into the leak of attack plans ... were associated with Signal chat blunder.

White House press secretary Karoline Leavitt on Wednesday said that Elon Musk will help lead the investigation into the Signal chat leak.

President Trump said his national security adviser, Mike Waltz, "learned a lesson" after he opened up a secret chat of Trump ...

It is unclear what specific information Caldwell, a top adviser in the Office of the Secretary of Defense, allegedly leaked ...

Sen. Roger Wicker, chairman of the Senate Armed Services Committee, penned a letter seeking an expedited inspector general ...

Across Washington, the Signal leak presented a major test early in Trump’s second ... Meanwhile, the Justice Department, which has traditionally handled investigations into the mishandling of ...

Dan Caldwell, a senior adviser to Defense Secretary Pete Hegseth, has been placed on administrative leave for an ...

A third Pentagon official on Wednesday has been placed on administrative leave as part of an ongoing investigation into leaks ...

Defense officials say Dan Caldwell, a senior adviser to Defense Secretary Pete Hegseth, has been placed on administrative ...

Dan Caldwell, a top adviser to Secretary of Defense Pete Hegseth, was put on leave this week amid an investigation into leaks ...