The Trump administration has begun detailed planning for a new mission to send American troops and intelligence officers into Mexico to target drug cartels, according to two U.S. officials and two former senior U.S. officials familiar with the effort. 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/@msnbc » Subscribe to MSNBC on