So, Trump sent a letter to Brazil announcing 50% tariffs. His demands are that Brazil stop prosecuting Bolsonaro (ex-President who tried to steal the last election, and stole the one before by getting Lula locked up on bogus charges) and that they let US social media platforms operate unfettered the country. If Brazil puts tariffs on US goods, then the US will increase its tariffs by the same amount.
Here’s the thing, Brazil and the US have essentially even trade: