What Is 2018 presidential elections in Brazil

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Last updated: April 15, 2026

Quick Answer: The 2018 Brazilian presidential election was held on October 7 and October 28, 2018, with Jair Bolsonaro winning 55.9% of the vote in the runoff against Fernando Haddad after no candidate secured a majority in the first round.

Key Facts

Overview

The 2018 Brazilian presidential election marked a major political shift, ending years of leftist dominance and ushering in a right-wing government. Held amid economic crisis, corruption scandals, and widespread voter discontent, the election featured a polarizing contest between far-right candidate Jair Bolsonaro and leftist Fernando Haddad.

The election used a two-round system, with the first round on October 7, 2018, and the runoff on October 28, 2018. No candidate secured over 50% in the first round, triggering the runoff between the top two finishers: Bolsonaro and Haddad.

How It Works

Brazil’s presidential election follows a two-round majority system, requiring a candidate to win over 50% of valid votes to avoid a runoff. This structure ensures broad support for the eventual winner and allows multiple parties to compete in the first round.

Comparison at a Glance

Comparing the 2018 election to Brazil’s previous presidential contests highlights shifts in party strength, voter behavior, and campaign tactics.

Election YearWinnerPartyVote Share (Runoff)Key Issues
2010Dilma RousseffPT56.1%Continuity of Lula’s policies, social programs
2014Dilma RousseffPT51.6%Economic downturn, corruption allegations
2018Jair BolsonaroPSL55.9%Anti-corruption, crime, moral conservatism
2006Lula da SilvaPT49.6% (1st), 60.8% (2nd)Poverty reduction, economic growth
1994Fernando Henrique CardosoPSDB56.1%Hyperinflation control, economic reform

The 2018 election broke from recent patterns by elevating a minor party (PSL) to power and rejecting the Workers' Party, which had governed Brazil for 13 of the previous 16 years. The shift reflected voter fatigue with corruption and a desire for political renewal, even if it meant supporting a controversial figure like Bolsonaro.

Why It Matters

The 2018 election reshaped Brazil’s political landscape, with long-term implications for democracy, governance, and international relations. Bolsonaro’s victory signaled a global trend toward populist and nationalist leaders, drawing comparisons to figures like Donald Trump and Rodrigo Duterte.

The 2018 election remains a pivotal moment in Brazil’s modern history, illustrating how economic hardship, corruption, and digital disinformation can converge to transform a nation’s political trajectory.

Sources

  1. WikipediaCC-BY-SA-4.0

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