Brazil’s runoff: what Lula and Flávio Bolsonaro’s vote will decide
Illustration: a conceptual depiction of Brazil’s presidential runoff, not a real voting scene.
Brazil votes on Sunday, October 25, to choose between President Luiz Inácio Lula da Silva and Senator Flávio Bolsonaro. The winner will lead Latin America’s largest economy, but the presidential result is only part of what voters decided in this election cycle: a new, right-leaning Congress is also due to take office next year.
That makes the practical question bigger than who wins the runoff. What policy room will the next president have, and which issues are likely to require difficult bargaining?
What Sunday’s ballot decides
The second round is between the two candidates who finished first and second on October 4. Flávio Bolsonaro led the first round with about 47% of valid votes, against about 45% for Lula, but neither candidate won the required majority. Brazil’s electoral authority says voting on October 25 runs from 8 a.m. to 5 p.m. Brasília time.
The ballot settles the presidency. It does not erase the first-round legislative results or immediately change Congress’s composition. The Superior Electoral Court’s calendar sets October 25 as the runoff date; the new legislature begins in February 2027.
The campaign’s main arguments
In Friday’s final televised debate, the candidates returned to issues that voters face directly: living costs, minimum wages and welfare, public security, health care and support for agribusiness. Reuters reported that the debate also featured personal accusations. Those allegations remain campaign claims unless independently established; they should not be treated as findings of fact.
Polling reports describe the race as close, but surveys are estimates, not the result. Turnout, late decisions and the official count will determine the winner.
Why Congress matters whichever candidate wins
Voters elected federal lawmakers on October 4. The Chamber of Deputies says the Liberal Party, associated with the Bolsonaro camp, won 121 seats, while the PT-PCdoB-PV federation won 88. An Associated Press analysis describes the overall congressional shift as rightward. That gives the next president a legislature in which building support across parties will matter for budgets and bills, although party labels alone cannot predict how lawmakers will vote on a particular proposal.
A president can set priorities and appoint ministers, but passing legislation takes congressional votes. The seat totals do not tell us exactly how each lawmaker will vote: parties are coalitions, and alliances can change issue by issue. Still, the composition gives readers a useful guide to the political constraints that will follow Sunday’s result.
What the election does not settle
The vote will choose a president, not determine how quickly campaign promises become law or how the next administration will work with Congress. Nor do polls establish the outcome in advance. The next administration’s policy choices, coalition negotiations and legislative record remain unknown until after the election.
For context on the political legacy behind Flávio Bolsonaro’s campaign, read CrispNG’s background on Jair Bolsonaro’s coup-plot conviction and its political impact.
Sources: Brazil’s Superior Electoral Court election guide and official calendar; Chamber of Deputies on the new Chamber’s party composition; AP analysis of Congress’s rightward shift; Associated Press election explainer and Reuters on the final debate.