President Trump is again amping up his trade threats, unveiling a new batch of letters to country leaders outlining tariffs on goods imported from their countries beginning in August. The highlight of his letter barrage late Wednesday was his announcement of a coming 50% tariff on goods from Brazil in a letter sent to its president, Luiz Inácio Lula da Silva. Trump cited the country's treatment of former President Jair Bolsonaro, who is on trial in Brazil’s Supreme Court on charges that he plotted a coup in 2022. "This Trial should not be taking place," Trump said. "It is a...