Datafolha Poll Confirms Tight Senate Race and Runoff in Brazil’s Northeastern Stronghold of Pernambuco

A new Datafolha poll released Friday confirms a highly competitive and fragmented election landscape in the key Brazilian state of Pernambuco, with the race for two Senate seats locked in a technical tie and the gubernatorial election heading toward a runoff. The results underscore the closely contested nature of the current electoral cycle in the Northeast, a traditional stronghold for center-left politics.

The poll shows incumbent Governor Raquel Lyra (PSD) with 47% of the total vote for the governorship, against 42% for former Recife mayor João Campos (PSB). As neither candidate surpasses the 50% plus one threshold required for an outright first-round victory, a second-round runoff between the two is confirmed. The data, collected between September 8 and 10, is a major signal of the state's tight political dynamic, pitting Lyra, a center-right figure, against Campos, who is the son of former state governor Eduardo Campos and is allied with the center-left.

The fight for the two available seats in the Federal Senate is even more crowded, with four candidates clustered at the top. The poll gives Marília Arraes (PDT) 18% of the vote, followed by current Senator Humberto Costa (PT) with 16%. The two are in a technical tie given the poll’s three-point margin of error. They are pursued by former Education Minister Mendonça Filho (PL) at 12% and Federal Deputy Eduardo da Fonte (PP) at 10%. Since voters can select two candidates for the Senate, the race is a scramble for both top spots.

The candidates in the Senate race represent a mix of Brazil’s national political blocs. Arraes, a prominent name from the state’s powerful Arraes-Campos political dynasty, represents the center-left Democratic Labour Party (PDT). Costa is a heavyweight from the Workers’ Party (PT), a key ally of President Luiz Inácio Lula da Silva and a former Health Minister. Their proximity at the top signals the continued strength of the Lula-aligned left in the Northeast. Mendonça Filho, meanwhile, is the highest-polling representative of the national right-wing movement, belonging to the Liberal Party (PL), the party of former President Jair Bolsonaro.

Pernambuco, the home state of former Governor Miguel Arraes and a state critical to national-level electoral math, is consistently a bellwether for the political mood in the Northeast. The close results across both the gubernatorial and senatorial races signal that even in a historically cohesive political region, the election is fluid and highly individualized. With the incumbent governor holding a narrow advantage in a contest that requires a second round, and with the two Senate seats being fought over by four different political parties, the state’s political future remains deeply uncertain as the first-round election day approaches.