Historian Douglas Brinkley on Presidential Power Plays Then and Now

With the word 'unprecedented' often used to describe President Trump's approach to executive power, we look at his first few actions in historical context. On Today's Show: On Presidents Day, as our centennial series continues, Douglas Brinkley , professor of history at Rice University, a CNN Presidential Historian, and a contributing editor at Vanity Fair , talks about the history of U.S. presidents and their exercise of executive power and how President Trump's actions compare.