moscow kremlin say monday russian president vladimir putin take decision hold respond new u.s. sanction last year independently influence former u.s. national security adviser michael flynn flynn plead guilty friday lie fbi contact russia agree cooperate prosecutors delve action president donald trump inner circle take office u.s. prosecutors say flynn sergei kislyak russian ambassador u.s. last december discuss economic sanction obama administration impose moscow allegedly interfere u.s. presidential election something moscow deny obama time expel 35 russian diplomats u.s. authorities seize two russian diplomatic compound unite state putin say would wait see relations develop new trump administration respond russia go ahead take retaliatory measure summer kremlin spokesman dmitry peskov say putin take decision hold retaliate independently know flynn allege request russia refrain immediate response flynn position ask kislyak russian ambassador u.s. anything say peskov call idea absurd course putin take decision decision peskov tell conference call reporters decision could connect request recommendations president take decisions absolutely independently kremlin say putin influence ex-trump official flynn