Sanctions are in doubt?

What can stand behind the call of the former US ambassador to the dialogue with the Kremlin? Are there any moods in Washington in favor of the abolition of sanctions? Will Putin can leave his enemies in the West? What changes in Moscow awaits the former American ambassador? We discuss these and other issues with the American publicist former correspondent of Financial Times in Moscow David Sater and political scientist Professor of George Mason University in Viriku Shiryaev