PI · Northeast

Piauí in presidential elections

Solid left

Lean index: −53.05pts; Weighted average of the gap between the state margin and the national margin over the last four runoffs. Positive = leans right.
Share of the electorate: 1.76%; State valid votes over the national total, latest round available.
Bloc switches: 1; Between consecutive elections of the 1989–2026 series (10 elections; round 2 where there was one).
Swing state: No; Changed bloc ≥3 times in 10 elections, or lean index < 8 pts.

Right − left margin by election

Decisive round of each year (runoff where there was one). Dashed line: Brazil. Red dots: left ahead; blue dots: right ahead.

All elections

Year	Round	Candidates (% of valid votes)	Margin (right − left)	Bloc ahead
2026 10/25/2026	Round 2	Lula (PT)75.88% Flavio Bolsonaro (PL)24.12%	−51.75 pts	Left bloc
2026 10/04/2026	Round 1	Lula (PT)70.99% Flavio Bolsonaro (PL)24.09% Escritor Augusto Cury (AVANTE)2.22% Renan Santos (MISSÃO)1.50% +8 more Ronaldo Caiado (PSD)1.01% Zema (NOVO)0.06% Samara (UP)0.05% Clariana Barao (DC)0.02% Hertz Dias (PSTU)0.02% Edmilson Costa (PCB)0.01% Veterinário Wilson Grassi (DEMOCRATA)0.01% Rui Costa Pimenta (PCO)0.01%	−46.61 pts	Left bloc
2022 10/30/2022	Round 2	Lula (PT)76.86% Jair Bolsonaro (PL)23.14%	−53.72 pts	Left bloc
2022 10/02/2022	Round 1	Lula (PT)74.25% Jair Bolsonaro (PL)19.90% Ciro Gomes (PDT)2.90% Simone Tebet (MDB)2.06% +7 more Soraya Thronicke (UNIÃO)0.64% Felipe D Avila (NOVO)0.13% Padre Kelmon (PTB)0.05% Sofia Manzano (PCB)0.02% Léo Péricles (UP)0.02% Vera (PSTU)0.02% Constituinte Eymael (DC)0.01%	−54.42 pts	Left bloc
2018 10/28/2018	Round 2	Fernando Haddad (PT)77.05% Jair Bolsonaro (PSL)22.95%	−54.10 pts	Left bloc
2018 10/07/2018	Round 1	Fernando Haddad (PT)63.40% Jair Bolsonaro (PSL)18.76% Ciro Gomes (PDT)11.42% Geraldo Alckmin (PSDB)2.59% +9 more Henrique Meirelles (MDB)0.91% João Amoêdo (NOVO)0.83% Marina Silva (REDE)0.72% Cabo Daciolo (PATRI)0.66% Guilherme Boulos (PSOL)0.33% Alvaro Dias (PODE)0.28% Vera (PSTU)0.05% Eymael (DC)0.03% João Goulart Filho (PPL)0.02%	−51.87 pts	Left bloc
2014 10/26/2014	Round 2	Dilma (PT)78.29% Aécio Neves (PSDB)21.71%	−56.58 pts	Left bloc
2014 10/05/2014	Round 1	Dilma (PT)70.60% Marina Silva (PSB)14.07% Aécio Neves (PSDB)13.84% Luciana Genro (PSOL)0.58% +7 more Pastor Everaldo (PSC)0.36% Eduardo Jorge (PV)0.25% Levy Fidelix (PRTB)0.13% Zé Maria (PSTU)0.08% Eymael (PSDC)0.04% Mauro Iasi (PCB)0.03% Rui Costa Pimenta (PCO)0.01%	−71.24 pts	Left bloc
2010 10/31/2010	Round 2	Dilma (PT)69.98% José Serra (PSDB)30.02%	−39.97 pts	Left bloc
2010 10/03/2010	Round 1	Dilma (PT)67.09% José Serra (PSDB)20.93% Marina Silva (PV)11.41% Plínio (PSOL)0.33% +5 more Zé Maria (PSTU)0.08% Eymael (PSDC)0.08% Ivan Pinheiro (PCB)0.04% Levy Fidelix (PRTB)0.04% Rui Costa Pimenta (PCO)0.01%	−57.92 pts	Left bloc
2006 10/29/2006	Round 2	Lula (PT)77.32% Geraldo Alckmin (PSDB)22.68%	−54.65 pts	Left bloc
2006 10/01/2006	Round 1	Lula (PT)67.28% Geraldo Alckmin (PSDB)28.05% Heloísa Helena (PSOL)2.48% Cristovam Buarque (PDT)1.96% +3 more Ana Maria Rangel (PRP)0.12% Luciano Bivar (PSL)0.07% José Maria Eymael (PSDC)0.03%	−43.44 pts	Left bloc
2002 10/27/2002	Round 2	Lula (PT)60.73% José Serra (PSDB)39.27%	−21.46 pts	Left bloc
2002 10/06/2002	Round 1	Lula (PT)46.85% José Serra (PSDB)27.29% Ciro (PPS)14.91% Garotinho (PSB)10.77% +2 more Zé Maria (PSTU)0.15% Rui Costa Pimenta (PCO)0.03%	−45.41 pts	Left bloc
1998 10/04/1998	Round 1	Fernando Henrique (PSDB)48.09% Lula (PT)26.95% Ciro Gomes (PPS)18.53% Brigadeiro Ivan Frota (PMN)1.30% +8 more Enéas (PRONA)1.25% João de Deus Barbosa (PT do B)0.84% Zé Maria (PSTU)0.73% Eymael (PSDC)0.63% Sirkis (PV)0.49% Vasco Neto (PSN)0.42% Thereza Ruiz (PTN)0.39% Sergio Bueno (PSC)0.38%	+2.32 pts	Right bloc
1994 10/03/1994	Round 1	Fernando Henrique Cardoso (PSDB)51.51% Luiz Inacio Lula da Silva (PT)32.01% Orestes Quercia (PMDB)8.96% Eneas Ferreira Carneiro (PRONA)2.93% +4 more Carlos Antonio Gomes (PRN)2.23% Leonel de Moura Brizola (PDT)1.00% Esperidiao Amin Helou Filho (PPR)0.99% Hernani Goulart Fortuna (PSC)0.37%	+33.98 pts	Right bloc
1989 12/17/1989	Round 2	Collor (PRN)58.92% Lula (PT)41.08%	+17.84 pts	Right bloc
1989 11/15/1989	Round 1	Collor (PRN)39.75% Lula (PT)22.73% Brizola (PDT)9.69% Ulysses Guimaraes (PMDB)6.32% +18 more Mario Covas (PSDB)5.05% Maluf (PDS)3.96% Afif (PL)3.82% Aureliano Chaves (PFL)1.95% P.G. (PP)0.93% Roberto Freire (PCB)0.76% Eudes Mattar (PLP)0.67% Livia Maria (PN)0.64% Zamir (PCN)0.60% Affonso Camargo (PTB)0.54% Eneas (PRONA)0.52% Marronzinho (PSP)0.51% Ronaldo Caiado (PSD)0.39% Gabeira (PV)0.34% Manoel Horta (PDCdoB)0.29% Pedreira (PPB)0.27% Celso Brant (PMN)0.26% Correa (PMB)0.00%	+21.31 pts	Right bloc

Bloc changes in the series (10 elections)

Each item is an election in which the bloc ahead in the state differed from the previous election; the round used is in parentheses.

2002(Round 2)·Right bloc→Left bloc