President Donald Trump’s top-ranking communicators have no place for any of these qualities. Rather they are known for their rashness, haughtiness, vulgarity, mendacity, and pique.

The president of secure messaging app Signal has warned of the security implications of agentic AI, where artificial intelligence (AI) can access systems to help people achieve certain tasks. In ...

Mike Waltz, Trump's former national security adviser, faced questions from Democrats on the Signal chat controversy Tuesday in confirmation hearing for U.N. ambassador.

U.S. President Donald Trump's decision to ramp up arms shipments to Ukraine is a signal to Kyiv to abandon peace efforts, Russia said on Thursday, vowing it would not accept the "blackmail" of ...