The Port of Los Angeles anticipates a significant drop in cargo traffic due to the US-China trade war, with retailers expected to have only about 7 weeks of full inventories left. The trade war has led to a decline in imports, with some major American retailers stopping all shipments from China. The situation is expected to worsen unless a deal on tariffs is reached. The US has imposed a 145% tariff on China, which has retaliated with a 120% duty on American goods.