A judge on Brazil's Supreme Court formally asked the state mediator on Tuesday to review a request to grant the government voting power in electric utility Eletrobras proportional to its stake in the formerly state-run company. The request marks the latest twist in a dispute over how much power the government of President Luiz Inacio Lula da Silva should wield over the power company. Judge Nunes Marques, the top court's point person on the case, ruled in a written decision published on the court's website that Eletrobras and the government have 90 days to find a "friendly solution."