“Congress is trying to assume control of US policy toward Iran by legislating severe trade sanctions. Nothing would be more damaging to US policy.

For the first time in three decades a President has forged an intelligent, transparent and multifaceted strategy for dealing with Iran. Unlike past policies, this calibrated confrontation using sticks mixed with dangling carrots has widespread international support. Ironically, it may be Congress, not China, which derails effective US sanctions.”