New book shows top US generals planned ways to stop Trump in case of coup

The top US military officer, Chairman of the Joint Chiefs Gen. Mark Milley, was so shaken that then-President Donald Trump and his allies might attempt a coup or take other dangerous or illegal measures after the November election that Milley and other top officials informally planned for different ways to stop Trump, according to excerpts of an upcoming book obtained by CNN. CNN’s Anderson Cooper and Jamie Gangel discuss.