São Paulo Senate race tight: Marina Silva leads with 16%, four candidates within 2 points

A Datafolha poll shows a close four-way race for São Paulo's two Senate seats, with Marina Silva at 16%, Simone Tebet and André do Prado at 15%, and Guilherme Derrite at 14%. The outcome is uncertain, as voters cast two votes and the distribution between first and second seats is complex. This matters because the composition of Brazil's Senate will influence the national legislative agenda.