Maxine Waters (D-Calif.) praised President Barack Obama for putting together a campaign database that "will have information about everything on every individual."
https://www.breitbart.com/tech/2018/03/19/flashback-maxine-waters-confirms-obama-has-database-with-information-on-every-individual/
Computer expert Dennis Montgomery developed software programs that could breach secure computer systems and collect massive amounts of data.
That system, THE HAMMER, according to the audio tapes, accessed the phone calls, emails and bank accounts of millions of ordinary Americans.
http://theamericanreport.org/2017/03/17/whistleblower-tapes-trump-wiretapped-zillion-times-hammer-brennans-clappers-secret-computer-system/
http://archive.fo/jmgtd