Chuck Todd: Walz will continue ‘mockery’ of Trump in DNC address

NBC News Chief Political Analyst joins Meet the Press NOW to preview night three of the Democratic National Convention, set to feature speeches from Gov. Tim Walz (D-Minn.), Rep. Nancy Pelosi (D-Calif.), former President Bill Clinton and others. Kelly O’Donnell reports from the convention floor and Vaughn Hillyard reports from former President Trump’s first outdoor rally since his attempted assassination.