A photo captured Mike Waltz, the recently fired National Security Advisor, using the Signal app during his final cabinet meeting. The image shows ongoing chats with Vice President JD Vance and others. One message reads, "I have confirmation from my counterpart it's turned off, He is going to be here in..." The sender remains unclear. Chats with Secretary of State Marco Rubio and Special Envoy Steve Witkoff were also visible but unreadable.
White House Communications Director Steven Cheung defended Waltz's Signal use, stating it's an approved app on government phones.
Waltz's 101-day tenure was the second shortest in White House history. His downfall began with the "Signalgate" incident in March, where he mistakenly included a journalist in a group chat discussing a military strike, revealing sensitive information and questioning Trump's decisions among officials.
Despite initially supporting Waltz after Signalgate, Trump reportedly began searching for a replacement weeks later. Rubio serves as a temporary replacement, with Witkoff a potential long-term successor. Waltz's new role as UN Ambassador was announced shortly after his dismissal.