President Donald Trump is defending his national security adviser, Michael Waltz, and top administration officials are downplaying a security breach that saw plans for upcoming military strikes in Yemen shared on a Signal group chat. They insist classified information wasn't leaked and are far more outraged with the journalist — editor-in-chief for The Atlantic, Jeffrey Goldberg — who was errantly included in the chat by Waltz and reported on its contents. Speaking to reporters in the Cabinet room Tuesday afternoon during a meeting with a group of his ambassadors, President Donald Trump said of the Signal leak: “The main thing was nothing happened. The attack was totally successful."