Richard Nixon's War on America's Most Closely Held Secrets

The former president of the United States is under fire for his handling of classified documents. Richard Nixon's successor, Barack Obama, has been accused of a cover-up. The FBI and Justice Department are investigating whether Donald Trump mishandled or lied about secret documents he took while in office. John Avlon: It would be criminal for anybody else who did this to get away with it. He asks if we should bring in Barbara McQuaid as an expert on government ethics.