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

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.

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.

Waltz pledged to bring reform to the international group, which Utah Republican Senator Mike Lee says has been a detriment to U.S. interests.

Waltz pledged to bring reform to the international group, which Utah Republican Senator Mike Lee says has been a detriment to U.S. interests. Senator Mike Lee (R-Utah.) says Waltz will ensure the ...

How Did This Signalgate Official Keep Getting Paid After He Was Fired? Mike Waltz had quite an interesting reaction when asked about his paycheck from the White House.

Mike Waltz says that as U_S_ ambassador to the United Nations the U_S_ is reviewing its support and opting to go “back to basics.” ...