RIO DE JANEIRO, Brazil: Shirtless and drenched in sweat on his treadmill, Lula runs. He keeps running. At 80, President Luiz Inacio Lula da Silva, the dominant figure in Brazilian politics for four decades, wants to show he still has the energy to win a fourth term in office in October’s election. “You can’t stop the Earth from turning or the years from passing,” Lula muses in his gravely voice in one of the social media videos he shares showcasing his workouts. The leftist leader has survived e
