How Clinton's email controversy is impacting 2016 campaign

According to a new poll, a majority of Americans disapprove of how Hillary Clinton handled the private email server controversy. In July, 63 percent of them said they wanted Clinton to be the party's nominee. That number has since dropped to 42 percent. CBS News political director and "Face the Nation" moderator John Dickerson joins "CBS This Morning" to discuss the race for the White House.