Professor Robert Epstein says Google is manipulating voters "on a massive scale," using tools that it has at its disposal exclusively, and that "no one can counteract them." Epstein testified before congress this week and warned that big tech election meddling is more powerful than anything he's seen in 40 years of behavioral sciences. Dr. Epstein, who personally supported and voted for Hillary Clinton in 2016 , testified before the Senate Judiciary Committee.