JUIZ DE FORA, Brazil (Reuters) - The leading candidate in Brazil’s presidential election is in serious but stable condition after being stabbed by an assailant at a campaign rally on Thursday, doctors said, pushing an already chaotic campaign into further disarray. -snip- The Federal Police said in a statement that it had officers escorting Bolsonaro at the time of the knife attack and the “aggressor” was caught in the act. It said the circumstances were being investigated. Local police in Juiz de Fora confirmed to Reuters that the suspect, Adelio Bispo de Oliveira, 40, was in custody and that he...