If implemented, the sanctions against supreme court justice Alexandre de Moraes would dramatically escalate a widening feud between the United States and Brazil.

Trump last week threatened to hit Brazil with a 50% tariff starting on August 1, citing its treatment of Bolsonaro, the country’s former president. The threat came amid a stream of tariff demand letters the US president has been sending other economies setting new import taxes for next month after a three-month negotiating period.

A prosecutor has asked Brazil's Supreme Court to find ex-president Jair Bolsonaro guilty of plotting a violent coup after a trial that saw President Trump try to intervene.