Sen. Warner pushes Facebook, Google and Twitter to step up efforts against misinformation ahead of the election

A leading Senate Democrat sent letters to the CEOs of Facebook, Twitter and Google on Tuesday pressing them to uphold their own platform rules and take action against misinformation and disinformation ahead of the election.

This is a companion discussion topic for the original entry at http://rss.cnn.com/~r/rss/cnn_tech/~3/hznCqXLdBKs/index.html