Global trade tensions are heating up, as China announces new tariffs on imports of European brandy. The move follows the EU decision to raise tariffs on Chinese-made electric vehicles, following similar moves by the US and Canada. Greta Peisch, a partner at Wiley Rein LLP and former General Counsel for the US Trade Representative, explains why French cognac producers are set to bear the brunt of the latest tariffs, and what's next for US-China trade relations.