President Trump is privately venting his frustration about National Security Advisor Mike Waltz, according to two Republican sources with knowledge of the conversations. The New York Times is reporting that U.S. military pilots are also frustrated with the Signal group chat snafu. NBC News' Melanie Zanona reports more. New York Times Pentagon correspondent Helene Cooper and former NATO Supreme Allied Commander retired Gen. Wesley Clark join José Díaz-Balart to discuss. For more context and news coverage of the most important stories of our day click here: msnbc.com » Subscribe to MSNBC: youtube.com/msnbc » Subscribe to MSNBC on TikTok tiktok.com/@msnbc » Subscribe to MSNBC on Instagram instagram.com/msnbc Download our new MSNBC app for the latest breaking news and daily headlines at a glance: msnbc.com/information/download-msnbc-app-n1241692 Follow MSNBC Show Blogs MaddowBlog: msnbc.com/maddowblog ReidOut Blo...