Former President Donald Trump pleaded not guilty to four federal charges related to his alleged efforts to overturn the 2020 presidential election today. He was arrested in the same courthouse that has hosted court proceedings for more than 1,000 Capitol rioters who have been charged for breaching the Capitol. CNN Political Director David Chalian explains the charges against Trump, and how other Republicans are reacting to the arraignment. The judge scheduled the next hearing in the case for August 28th.  To learn more about how CNN protects listener privacy, visit cnn.com/privacy