Woah! This from a CBS News article  on the leaked campaign e-mails from Wikileaks:
Two days after The Associated Press was first to report in March 2015 that Clinton had been running a private server in her home in New York to send and receive messages when she was secretary of state, her advisers were shaping their strategy to respond to the revelation.
Among the emails made public Tuesday by WikiLeaks was one from Clinton campaign spokesman Nick Merrill, who optimistically suggested that the issue might quickly blow over…
…As the email controversy escalated in the summer of 2015, Clinton herself seemed slow to grasp the continuing political damage. Communications director Jennifer Palmieri in August expressed concerns that Clinton “wasn’t in the same place” on the issue as some on her campaign staff.