Lula mobilized millions to win Brazil's election, while Bolsonaro contests victory

BRASILIA (AP) — President Luiz Inácio Lula da Silva 's comeback to win Brazil’s presidential runoff Sunday is already facing its first hurdle as his competitor, Sen. Flávio Bolsonaro, challenges the results, setting the stage for a possible showdown between the country’s two polarizing political forces.Lula, who convinced an extra 10.4 million voters to support him in the runoff, is...