Donald Trump followed through on his threat to sue the Des Moines Register and its pollster over a presidential poll he didn't like, raising more concerns about his attacks on the media. Plus, on Tuesday it became clear that some Republican senators have concerns about RFK Jr.'s bid for HHS. Peter Baker, Melanie Zanona, and Jeff Mason join Stephanie Ruhle on The 11th Hour. » 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 Blog: msnbc.com/reidoutblog MSNBC delivers breaking news, in-depth analysis of politics headlines, as well as commentary and informed perspectives. Find video clips and segments from The Rachel Maddo...