Mark Warner: “At first Facebook said, there's no 'there' there, and increasingly, we're seeing paid advertising, fake accounts. We're…”

“At first Facebook said, there's no 'there' there, and increasingly, we're seeing paid advertising, fake accounts. We're seeing efforts to try to drive people to rallies. I wish that Facebook would be more transparent and forthcoming. Most Americans want to know if foreign based paid advertising is coming into our elections.”