Senate Democrats grilled Trump’s U.N. ambassador pick over the Signal scandal that exposed secret military plans to a journalist – reigniting a crisis the president hoped to forget. Sen. Jacky Rosen (D-Nev.), who took part in the questioning of Mike Waltz, joins The Weeknight. For more context and news coverage of the most important stories of our day click here: https://www.msnbc.com/ » Subscribe to MSNBC: https://www.youtube.com/msnbc » Subscribe to MSNBC on TikTok https://www.tiktok.com/@