NEW: Sen. Feinstein, Rep. Schiff urge Facebook and Twitter to investigate involvement of Russian bots in pushing "Release the Memo" campaign: "If these reports are accurate, we are witnessing an ongoing attack by the Russian government through Kremlin-linked social media actors."

NEW: Sen. Feinstein, Rep. Schiff urge Facebook and Twitter to investigate involvement of Russian bots in pushing "Release the Memo" campaign: "If these reports are accurate, we are witnessing an ongoing attack by the Russian government through Kremlin-linked social media actors." pic.twitter.com/dG8kZk8KYz

— ABC News Politics (@ABCPolitics) January 23, 2018