Watch: Rand Paul plays video of Markwayne Mullin challenging Teamsters president to fight

Sen. Rand Paul's questioning of Sen. Markwayne Mullin got personal during the Oklahoma senator's confirmation hearing to become the next Homeland Security secretary. Paul criticized Mullin for "sheer lack of any kind of self-awareness" and slammed him for past comments he made about a 2017 attack where Paul was seriously injured. Mullin accused Paul of "character assassination" against him. CBS News 24/7 is the premier anchored streaming news service from CBS News and Stations that is available free to everyone with access to the internet and is the destination for breaking news, live events, original reporting and storytelling, and programs from CBS News and Stations' top anchors and correspondents working locally, nationally and around the globe. It is available on more than 30 platforms across mobile, desktop and connected TVs for free, as well as CBSNews.com and Paramount+ and live in 91 countries. Subscribe to the CBS News YouTube channel: https://youtube.com/cbsnews Watch CBS News 24/7: https://cbsnews.com/live/ Download the CBS News app: https://cbsnews.com/mobile/ Follow CBS News on Instagram: https://instagram.com/cbsnews/ Like CBS News on Facebook: https://facebook.com/cbsnews Follow CBS News on X: https://twitter.com/cbsnews Subscribe to our newsletters: https://cbsnews.com/newsletters/ Try Paramount+ free: https://paramountplus.com/?ftag=PPM-05-10aeh8h For video licensing inquiries, contact: [email protected]