# Lula elected president as Flávio Bolsonaro finishes second

*Politics. 46% certain. Sunday, 4 October 2026*

> Speculative fiction assembled from prediction-market prices. This has not happened.

**Lula won the presidency while the Liberal Party secured the most Senate seats.**

Lula was elected president on Sunday, defeating Flávio Bolsonaro in a close runoff. Flávio Bolsonaro placed second in the final tally. The Liberal Party (PL) won the most seats in the senate.

Both Lula and Flávio Bolsonaro qualified for the runoff after the first round on Sunday. Lula had led the first round, while Flávio secured second place.

In the first round, Lula emerged as the top vote-getter, with Flávio Bolsonaro finishing as runner-up behind him. The Margin between them was narrow, prompting a runoff. No other candidates reached the second-place threshold.

The Senate elections held concurrently saw the PL win the largest share of seats, overtaking the MDB, UNIÃO and PSD. This shift altered the balance of power in the upper house. The PL's performance contrasted with the Presidential outcome.

The Senate results were finalized on Sunday, confirming the PL's lead. The PL now holds a plurality of senate seats. The Senate election concluded on Sunday.

## Analysis

Lula's election returns him to the presidency, extending his administration's policy agenda into a second term. Continuity may facilitate ongoing programs, but the president will still need legislative support to enact new measures.

The narrow Margin that forced a runoff reveals a polarized electorate, suggesting that any major reforms could encounter significant public scrutiny. Governing with such a divided base may require careful political balancing.

The Liberal Party's plurality in the senate introduces a new dynamic for the executive branch. With the PL controlling the most seats, it can influence the passage of legislation and may act as a counterweight to the president's agenda.

## What this was built from

- **Brazil Presidential Election**: Flávio Bolsonaro, 54%; settles Sunday, 4 October 2026 (polymarket). [Market](https://polymarket.com/event/brazil-presidential-election)
- **Brazil Presidential Election First Round: 2nd Place**: Flávio Bolsonaro, 71%; settles Sunday, 4 October 2026 (polymarket). [Market](https://polymarket.com/event/brazil-presidential-election-first-round-2nd-place)
- **Brazil’s Next President Elect**: Lula, 47%; settles Friday, 2 October 2026 (futuur). [Market](https://futuur.com/q/233774/brazils-next-president-elect)
- **Brazil Presidential Election First Round: Margin of Victory**: Lula da Silva <5%, 46%; settles Sunday, 4 October 2026 (polymarket). [Market](https://polymarket.com/event/brazil-presidential-election-first-round-margin-of-victory)
- **Will Luiz Inácio Lula da Silva qualify for Brazil's presidential runoff?**: Yes, 96%; settles Sunday, 4 October 2026 (polymarket). [Market](https://polymarket.com/event/which-candidates-will-advance-to-brazils-presidential-runoff)
- **Will Flavio Bolsonaro qualify for Brazil's presidential runoff?**: Yes, 98%; settles Sunday, 4 October 2026 (polymarket). [Market](https://polymarket.com/event/which-candidates-will-advance-to-brazils-presidential-runoff)
- **Brazil Presidential Election First Round Winner**: Lula, 71%; settles Sunday, 4 October 2026 (polymarket). [Market](https://polymarket.com/event/brazil-presidential-election-first-round-winner)
- **Next Brazil Senate Election: Most Seats Won**: PL, 84%; settles Sunday, 4 October 2026 (polymarket). [Market](https://polymarket.com/event/next-brazil-senate-election-most-seats-won)
- **Brazil Presidential Election First Round: 3rd Place**: Renan Santos, 48%; settles Sunday, 4 October 2026 (polymarket). [Market](https://polymarket.com/event/brazil-presidential-election-first-round-3rd-place)