To win in court, the Trump administration will have to argue against a pair of legal theories that conservatives have spent years developing as a way to check executive power.

Companies, consumers and foreign countries have been paying close attention to President Donald Trump’s aggressive policy of placing tariffs on foreign goods. Soon, the courts will weigh in on whether Trump has the power to levy those tariffs in the first place — a high-stakes legal battle that will either affirm a key pillar of Trump’s economic policy or cut it off at the knees.

The move marks a sharp escalation in Trump’s longstanding effort to reshape global trade, signaling a shift toward universal tariffs for nations that do not individually negotiate terms with the U.S.

President Donald Trump hit Brazil with 40% tariffs, alleging national security threats directed against the United States. In an extensive executive order titled “Addressing Threats to the United States by the Government of Brazil,

Faced with threats of 50 percent tariffs and demands to end a criminal case, President Luiz Inácio Lula da Silva said he wouldn’t take orders from President Trump.

Powell said it was "not for me to say" whether Trump's visit was tied to his demands that the Fed cut interest rates.