As Americans cast their ballots Tuesday, and indeed for the millions who already have, they are voting for the future not just of their own country, but of the open world that the United States helped create. A distinctive element of this global order, particularly since the fall of the Berlin Wall, has been the removal of many restrictions on cross-border flows of goods, money, ideas and even people. Under every American president since the Cold War, until Donald Trump, the United States championed global integration as a motor of prosperity, a bulwark of peace and—at least implicitly—a source of […]