Volatile Silva could upend Brazil’s presidential race

By Brian Winter SAO PAULO (Reuters) – The late entry of environmentalist Marina Silva into Brazil’s presidential race following the death of her running mate could rally young voters and those upset over a sluggish economy and corruption, but introduce new uncertainty for investors wary of her record of unpredictable decisions. A plane crash on Wednesday killed presidential candidate Eduardo Campos, who was widely viewed as one of Brazil’s brightest young politicians. Campos, 49, had been running third in polls with about 10 percent support, trailing incumbent President Dilma Rousseff and another opposition candidate. With dark circles under her eyes, and her voice cracking as she asked God to care for Campos’ widow and five children, Silva gave no indication at a news conference hours later whether she would replace Campos at the top of the Brazilian Socialist Party’s ticket in the Oct. 5 election.