Trump twinned his threat to Brazil with the promise of a 50% tariff on copper, which would strike at the economic lifeline of two more Southern neighbors, Chile and Peru. The president capped his week by setting a 30% tariff on Mexican imports as of Aug. 1.

Brazil’s chief prosecutor has called for a guilty verdict in the case of far-right former President Jair Bolsonaro, who is on trial accused of leading an alleged coup plot.

The investigation will seek to determine whether certain policies and actions by the Brazilian government are unreasonable or have hurt U.S. businesses, the Office of the United States Trade Represen...