Waltz's nomination was briefly delayed due to the objections of Sen. Rand Paul (R-KY), a libertarian Republican.

US ambassador to the UN nominee Mike Waltz advanced out of committee Thursday in a bipartisan vote, inching him closer to ...

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.

President Trump's former national security adviser, Mike Waltz, was grilled on Capitol Hill Tuesday over his role in the Signal group chat, where officials inadvertently disclosed sensitive ...

Mike Waltz suggested the use of Signal was not only appropriate -- but actually prudent, given the guidance he was following.

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.

Welcome to The Hill’s Defense & NatSec newsletter{beacon} Defense &National Security Defense &National Security   The Big Story Waltz emerges largely unscathed ...

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