US President Donald Trump on Thursday named Secretary of State Marco Rubio as acting national security adviser, replacing Mike Waltz, who is stepping down following a leak scandal involving a ...

President Donald Trump announced former national security advisor Mike Waltz as his choice to serve as ambassador to the U.N. after Rep. Elise Stefanik withdrew her nomination amid concern over ...

President Donald Trump has removed Mike Waltz as national security adviser and instead will nominate him for United Nations ambassador.

National security adviser Mike Waltz has been mired in controversy since he admitted responsibility for accidentally adding a reporter to a Signal group chat with senior officials.

Signalgate was the national security adviser’s most glaring mistake. But his problems ran deeper.

Read our review of choreographer Sasha Waltz's new dance work, based around Terry Riley's minimalist In C, presented by the Southbank Centre and London Sinfonietta ...

WASHINGTON — President Trump’s national security advisor Mike Waltz on Wednesday forcefully defended the administration’s Golden Dome missile defense initiative, insisting that the project ...

U.S. NSA Michael Waltz postpones India visit amid security breach controversy, potential rescheduling in the coming months.

Donald Trump's national security adviser, Mike Waltz, reportedly used his personal Gmail account for government communications.

National Security Adviser Mike Waltz remains on "shaky ground" with President Donald Trump as the SignalGate backlash continues to fester.

Trump gave Waltz a vote of confidence. It wasn’t as smooth behind the scenes. The fight over Waltz’s survival shows the administration is obsessed with reporters more than national security ...