WASHINGTON (AP) -- President Donald Trump signed an executive order Wednesday to impose his threatened 50% tariffs on Brazil, setting a legal rationale that Brazil's policies and criminal prosecution of former President Jair Bolsonaro constitute an economic emergency under a 1977 law.

Trump had threatened the tariffs July 9 in a letter to President Luiz Inacio Lula da Silva. But the legal basis of that threat was an earlier executive order premised on trade imbalances being a threat to the U.S. economy. But America ran a $6.8 billion trade surplus last year with Brazil, according to the U.S. Census Bureau.

A statement by the White House said Brazil's judiciary had tried to coerce social media companies and block their users, though it did not name the companies involved, X and Rumble.

Trump appears to identify with Bolsonaro, who attempted to overturn the results of his 2022 loss to Lula. Similarly, Trump was indicted in 2023 for his efforts to overturn the results of the 2020 U.S. presidential election.

Also Wednesday, Trump's Treasury Department announced sanctions on Brazilian Supreme Court Justice Alexandre de Moraes over alleged suppression of freedom of expression and Bolsonaro's ongoing trial.

De Moraes oversees the criminal case against Bolsonaro, who is accused of masterminding a plot to stay in power despite his 2022 defeat.

On July 18, the State Department announced visa restrictions on Brazilian judicial officials, including de Moraes.