For President Biden, rebuilding U.S. ties with Europe damaged by four years of Donald Trump's contentious leadership is a top priority. "Let me erase any lingering doubt,” Biden said during a virtual appearance at the Munich Security Conference, “the United States will work closely with our European Union partners to meet the shared challenges we face. We continue to support the goal of a Europe whole and free and at peace.” For European leaders dismayed by Trump’s “America First” cold shoulder, Biden’s election has come as a relief. He has rejoined the Paris climate agreement and the World Health Organization,...