Twitter announces it is notifying 677,775 people in the U.S. that they had some contact with the Kremlin-linked troll farm, Internet Research Agency, during the 2016 election period. The count of Russian-linked bot accounts is now 50,258, the company having identified an additional 13,512 bot accounts since its November Congressional briefing.
Michael T. Flynn resigns as National Security Advisor following controversy over his alleged contacts with Russian officials. Retired United States Army general Keith Kellogg subsequently becomes acting National Security Advisor until a permanent replacement is appointed.
Russia bans two George Soros-run foundations, including the Open Society Foundations, for posing a threat to "Russian national security". The Open Society Foundation and the Open Society Institute’s Assistance Foundation, both financed by business magnate Soros, are the latest additions to a list of “undesirable organizations”, a list the Russian government says is necessary to stop foreign governments from interfering in Russia’s internal affairs.