Defense Secretary Pete Hegseth used his personal phone to send information about U.S. military operations in Yemen to a 13-person Signal group chat, including his wife and his brother, two sources with knowledge of the matter confirmed to NBC News. Meanwhile, the Wall Street Journal editorial board is rebuking Hegseth for 'validating the concerns of his critics.' Jon Meacham and Joe Scarborough react on #MorningJoe. 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 MSNBC delivers breaking news, in-depth analysis of political he...