U.S. President Donald Trump further escalated a trade war on Wednesday by announcing he would impose reciprocal tariffs to match duties put on U.S. goods by other countries. Rates for China would be set at 34% for China, while the European Union and Japan would face 20% and 24%, respectively. Canada it appears won’t face additional tariffs for the time being. S&P 500 futures tumbled 3%, suggesting investors expect deep losses when Wall Street opens on Thursday. Nasdaq futures, reflecting tech companies such as Apple, Nvidia and Microsoft, dropped almost 4%. Here’s how market strategists and investors are reacting: ROYCE...