Brazilian President Luiz Inacio Lula da Silva on Thursday said he would not take orders over tariffs from a foreigner, referring to U.S. President Donald Trump, and later called the United States' threatened duty "unacceptable blackmail.

Brazilian President Luiz Inacio Lula da Silva on Thursday slammed Donald Trump's threat to impose 50 percent tariffs on Latin America's largest economy as "unacceptable blackmail." In his speech, leftist leader Lula slammed Brazilian politicians who back Trump's policies as "traitors to the homeland.

Donald Trump has proposed huge levies on Brazil, prompting an outspoken response from the CEO of Embraer, which builds vital regional airliners.

The Trump administration launched a trade investigation against Brazil on Tuesday, just one week after blasting Brasília for its treatment of ally former President Jair Bolsonaro. The trade investigation ostensibly regards unfair trade practices.

The United States may impose 100% tariffs on China, India, and Brazil if Russia refuses to sign a peace agreement with Ukraine within 50 days, states NATO Secretary General Mark Rutte, according to The Guardian.

President Donald Trump’s threat to boost import taxes by 50% over Brazilian goods could drive up the cost of breakfast in the United States.

Nobel Prize-winning economist Paul Krugman believes tariffs President Trump has threatened to impose on countries, including Mexico and Brazil, are here to stay and will cost U.S. consumers.