BADEN-BADEN, Germany — The United States broke with other large industrial nations over trade on Saturday as the Trump administration rejected concerns among allies about spreading protectionism and made clear that it would seek new approaches to managing global commerce.
At a meeting of finance ministers and central bankers from the Group of 20 industrialized and emerging nations and the European Union, Steven Mnuchin, attending his first major international gathering as Treasury secretary, signaled that American policy would follow the campaign promises made by President Trump to put “America first” and review existing trade agreements to seek better deals for the United States.