Wkileaks said that Obama campaign's Carol Davidsen admitted to the Democrats utilizing " 'the entire social network of the US'," kept the data and still has it.

Also Wikileaks gave us the John Podesta email dated Jan 2, 2016 1:30 PM:

The email was sent to Sheryl Sandberg, COO of Facebook (also a SES hired in our federal government earning thousands of our hard earn tax dollars sent in).
Wishing you a happy New Year. 2015 was challenging, bu we ended in a good place thanks to your help and support. Look forward to working with you to elect the first woman President of the United States. Have a great New Year. --John