"I think it will be a brutal confirmation hearing," Sen. Mark Warner said of Mike Waltz. "I think he's going to have tough ...

A phone app that Mike Waltz, President Donald Trump’s former national security adviser, apparently used to save his text ...

President Trump spoke to reporters from Air Force One Sunday night, answering questions from the national security advisor to ...

An encrypted messaging app used by the Trump administration temporarily suspended its operations Monday after suffering a ...

TeleMessage, the app that President Trump’s former National Security Advisor, Mike Waltz, appeared to use to archive his ...

A hacker reportedly stole customer data from a company that makes a Signal-like app that former National Security Adviser ...

At a time when President Donald Trump is busy boasting his achievements in his first 100 days in office, his cabinet picks ...

Mike Waltz was removed as Trump's national security adviser and faces Senate confirmation as the new nominee to be ambassador to the U.N.

The Signal group chat scandal and Waltz’s hawkish stance on Iran are being touted as the reasons for his ouster as NSA.

The Washington Post reported that Donald Trump soured on Waltz over Waltz's support for an Israeli attack on Iran.

Sen. Tammy Duckworth (D-Ill.) said former national security adviser Mike Waltz will face a “brutal, brutal” confirmation ...

Senate Democrats are predicting that former National Security Adviser Mike Waltz will have a "brutal confirmation hearing" for his new role as U.N. ambassador.