Former national security adviser Mike Waltz defended his use of the encrypted Signal app during a Senate confirmation hearings Tuesday on his nomination as President Trump's ambassador to the U.N.

Trump’s former national security adviser was pressed about mistakenly adding a journalist to an unclassified Signal chat used to discuss sensitive military plans.

Plus, right-wing weather conspiracy theories, ICE’s disturbing admission and the Trump administration goes all in on Grok, all in this week’s Tech Drop.

Donald Trump's former national security adviser Mike Waltz has faced scrutiny from US senators over his role in a sensitive Signal group chat in which officials discussed war plans. Waltz appeared ...

Former national security adviser Mike Waltz, removed from office amid the Signal chat controversy, spent Tuesday in the Senate confirmation hearing for his nomination as U.S. ambassador to the U.N.

Former National Security Advisor Mike Waltz faced scrutiny over a Signal chat incident during his U.N. ambassador hearing before the Senate Foreign Relations Committee.