Relations between the US and Russia are at a post-Cold War low point, filled with mistrust, unpredictability and potential danger. In Washington, there's a President whose mixed messages tie his own staff in knots. Meanwhile, in Moscow is a President who seems intent on exploiting Western division. HARDtalk’s Stephen Sackur speaks to Konstantin Kosachev, Chairman of the Russian Senate's Foreign Affairs Committee and an influential Russian voice on foreign affairs. Does Russia see opportunity in diplomatic chaos?(Photo: Konstantin Kosachev)