Brazil’s Supreme Court placed former president Jair Bolsonaro under house arrest on Monday after Justice Alexandre de Moraes ruled that he repeatedly violated court-ordered restrictions while standing trial for allegedly conspiring to overturn his 2022 election loss. The order confines the 70-year-old politician to his residence in Brasília, requires him to keep an electronic ankle monitor and bars the use of telephones or other electronic devices. Only his lawyers and individuals authorised by the court may visit. Federal police executed the warrant on Monday evening and seized Bolsonaro’s mobile phone. Moraes said Bolsonaro breached a 18 July ban on using social media—directly or through intermediaries—by sending video and voice messages that were posted by his sons and allies during nationwide demonstrations on 3 August. The judge described the conduct as a fresh attempt to coerce the court and obstruct justice. Bolsonaro’s lawyers called the decision unexpected and said they will appeal, insisting their client obeyed all prior measures. The move makes him the fourth Brazilian ex-president to be detained since the country’s return to democracy in 1985. The ruling comes amid a dispute with Washington: the U.S. Treasury last week sanctioned Moraes, and President Donald Trump has threatened to impose a 50% tariff on Brazilian imports, claiming the coup trial is a political “witch hunt.”