In the geopolitical fight for the future economy, Trump shoots the U.S. in the foot

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Open this photo in gallery: U.S. President Donald Trump attends a bilateral meeting with Chinese President Xi Jinping during the G20 leaders summit, in Osaka, Japan, on June 29, 2019.Kevin Lamarque/Reuters Khuram Hussain is the digital and sustainability lead at Saudi Aramco. He is a clean energy and industrial policy strategist who has advised governments, investors and multinationals on decarbonization and supply chain resilience. The future of clean energy may hinge on something as small as a lithium-ion battery – and as large as America’s strategic imagination. Donald Trump’s newly proposed tariffs will hike duties on Chinese battery storage cells...