The team led by U.S. President Donald Trump's national security adviser, Mike Waltz, set up at least 20 group chats on the ...

Democratic leaders of key House committees are reigniting calling for National Security Advisor Mike Waltz to step down.

President Trump was urged by far-right activist Laura Loomer to purge staffers she deemed insufficiently committed to his ...

President Donald Trump reportedly fired multiple officials on his National Security Council shortly after he met with Laura ...

President Donald Trump and his administration raised eyebrows about how they handled sensitive national security information ...

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

President Trump on Thursday confirmed a reported purge of national security agencies this week, with firings of at least a ...

President Donald Trump has abruptly fired the director of the National Security Agency, according to U.S. officials and ...

The White House concludes its review of the Signal chat leak, prompting calls for accountability and future security measures ...

This reveals a greater use of the app than previously known and highlights the extent to which the Trump administration’s ...

President Donald Trump said Thursday that he’s fired “some” White House National Security Council officials, a move that ...

President Donald Trump has reportedly moved to fire several senior White House National Security Council officials over ...