Sen. Mike Lee (R-UT) used his personal X account to boost a conspiracy theory that one of the Jan. 6 videos released at the order of House Speaker Mike Johnson shows an undercover federal agent disguised as a Trump supporter. But in reality, the video shows Kevin Lyons, a convicted Jan. 6 rioter sentenced to 4 years in prison, who told the court "I let the crowd and the mob and stuff kind of take over me. …I’m an idiot, I realize that" When NBC News reached out for comment, Lee spokesman Billy Gribbin in a statement dodged questions about the false claim. NBC News Justice Reporter Ryan Reilly breaks down the debunked theory. » Subscribe to MSNBC: on.msnbc.com/SubscribeTomsnbc About: MSNBC is the premier destination for in-depth analysis of daily headlines, insightful political commentary and informed perspectives. Reaching more than 95 million households worldwide, MSNBC offers a full schedule of live news coverage, political opinions and award-winning documentary programming...