The New York Times reports: A key senator investigating Russia’s interference in the 2016 election sharply criticized Twitter on Thursday for failing to aggressively investigate the Russian misuse of its platform after the company said it had largely limited its own inquiry to accounts linked to fraudulent profiles already identified by Facebook.

The senator, Mark Warner, Democrat of Virginia and vice chairman of the Senate Intelligence Committee, called Twitter’s briefing for congressional investigators “very disappointing,” and accused company officials of ignoring extensive evidence of nefarious Russian activity.

The company’s presentation “showed an enormous lack of understanding from the Twitter team of how serious this issue is, the threat it poses to democratic institutions and again begs many more questions than they offered,” Mr. Warner said, adding, “Their response was frankly inadequate on every level.” [Continue reading…]