Security adviser Mike Waltz takes "full responsibility" for Signal group chat scandal

National Security Advisor Mike Waltz said Tuesday he takes "full responsibility" for the scandal involving the use of an unclassified commercial chat app to discuss plans to strike Yemen by senior officials.The big picture: President Trump made clear he does not plan to fire Waltz, who established the Signal group and inadvertently added Atlantic magazine editor-in-chief Jeffrey Goldberg.Administration officials have said no classified information was shared during the conversation.Driving the news: "A staffer wasn't responsible," Waltz said in an interview with Laura Ingraham on FOX News' The Ingraham Angle."I take full responsibility...