Former President Donald Trump pleaded not guilty to the dozens of charges against him related to his handling of classified documents. CNN Chief National Affairs Correspondent Jeff Zeleny breaks down what happened in the courtroom and what to expect next in this case. Plus, the reactions from Republicans on Capitol Hill and on the 2024 campaign trail are mixed, as Trump becomes the first former president to face federal charges.To learn more about how CNN protects listener privacy, visit cnn.com/privacy