Twitter just got a major dose of reality in the investigation over Russian election interference. In a press conference Thursday after Twitter briefed the Senate Intelligence Committee staff, a visibly frustrated Mark Warner, the panel's top Democrat, laid into the social network for a briefing he called "frankly inadequate on almost every level." He said it pointed to a company that didn't understand the stakes.
Why it matters: Twitter and Facebook, which also briefed the committee on Russian election meddling on its platform, are finding themselves out of their depth. Lawmakers like the usually even-keeled Warner will keep hammering this issue for months to come. This is an active probe into foreign espionage — not a wonky regulatory issue that can be swept aside by savvy lobbyists.