Former National Security Advisor Mike Waltz faced scrutiny over a Signal chat incident during his U.N. ambassador hearing ...

Former national security adviser Mike Waltz defended his use of the messaging app Signal during a confirmation hearing ...

Months after the chat was disclosed, questions remain over the controversy, including if federal laws were violated and if ...

Signal is available on the iPhone’s App Store and the Google Play Store for Android devices. You must have a phone number capable of receiving a text message or phone call, since a verification ...