Did Bill Clinton make the case for Hillary in convention speech?
"Face the Nation" moderator and CBS News political director John Dickerson joins "CBS This Morning" to explain why Bill Clinton's case that Hillary Clinton is an agent of change must become a "multiple-month-long argument" and how a remark by the Clintons' longtime friend, Virginia Gov. Terry McAuliffe, undermined the Democratic nominee's stance on the Trans-Pacific Partnership trade deal.