<h1>Former president convicted of attempting coup after election dispute; foreign government threatens sanctions and trade retaliatory measures</h1> A former president was convicted by a Supreme Court panel of attempting a coup after contesting an election, prompting the current U.S. administration to warn of sanctions and earlier imposing tariffs tied to the case; a U.S. official also signaled possible Magnitsky sanctions against justices involved. Brazil's foreign ministry and executive branch rejected the comments as improper interference, stressed judicial independence and due process, and said it has plans to support companies and seek new markets to offset potential U.S. trade measures. Analysts expect possible expansion of sanctions to other justices or relatives and the threat of additional tariffs linked to Brazil's energy imports.