"On December 29, 2016, then-President Obama imposed sanctions on Russia for having interfered in the election. Incoming National Security Advisor Michael Flynn called Russian Ambassador and asked Russia not to escalate the situation in response to the sanctions. The following day, Putin announced that Russia would not take retaliatory measures in response to the sanctions at that time. Hours later, President-Elect Trump tweeted, "Great move on delay (by V. Putin)." The next day, on December 31, 2016, Kislyak called Flynn and told him the request had been received at the highest levels and Russia had chosen not to retaliate as a result of Flynn's request."