May 23, 2026

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1. Prediction market

The Polymarket markets of the Brazil 2026 cycle total approximately USD 89.0M accumulated since opening (snapshot May 23, 18:01 UTC), with the presidential market concentrating over 95% of total volume — where the signal remains more robust.

In the presidential market, Lula remained stable at 45.50% (USD 5.73M accumulated) for the third consecutive day, unchanged since May 21. Flávio Bolsonaro ceded marginally to 27.75% (USD 5.94M accumulated), a decline of ↓0.30pp in 24h against 28.05% at the close of May 22 — returning a fraction of the recovery of ↑3.40pp registered the day before. The Lula × Flávio gap closed at +17.75pp Lula (↑0.30pp in 24h, Lula widens slightly), restoring the widening trend observed since May 19 before Flávio's jump on May 22. Over five days, Flávio remains ↓3.55pp against 31.30% on May 17.

The third path had heterogeneous movement. The highlight of the day was Ronaldo Caiado, who recovered to 1.65% (USD 3.15M accumulated) — a gain of ↑0.60pp in 24h, an isolated relevant movement in the center-right segment of the cycle. Renan Santos at 11.95% (USD 5.67M accumulated) recovered ↑0.20pp and maintains the second position in Poly's presidential market. Romeu Zema ceded to 4.65% (USD 2.79M accumulated) (↓0.40pp in 24h) — ties Haddad, at 4.65% (USD 4.90M accumulated) (↑0.10pp), for the first time in the recent series. Michelle Bolsonaro ceded to 2.90% (USD 6.56M accumulated, second highest position in volume among third-path candidates) — a decline of ↓0.45pp in 24h that signals weakening of the substitution hypothesis tested by Datafolha on May 22 (scenario in which Michelle in place of Flávio would lose +5pp against Lula in the runoff, a larger gap than Flávio's own +4pp).

In the 2nd place market, Flávio returned part of the previous day's rise to 57.00% at the top (↓1.00pp in 24h), Renan ceded to 15.55% (USD 1.0M) (↓0.70pp), Lula at 11.50% stable, Haddad at 4.15%, Zema at 2.90%, Michelle at 2.30%. In the 3rd place market, Renan remained in absolute top at 33.00% stable, Zema recovered to 24.50% (↑1.50pp in 24h, returning the decline of May 22), Caiado at 15.00% stable, and Flávio at 11.15% stable — the market continues to price material risk that Flávio finishes in third.

The contract for impeachment of an STF justice before 2027 continued in sustained correction to 6.65% (USD 79k accumulated) — a gain of ↑0.20pp in 24h against 6.45% at the close of May 22. The movement extends over ~48h the reversal of ↑2.30pp of the collapse to 4.35% registered following the close of May 21. Net trajectory remains below the 8% baseline but in consistent upward correction. In the Senate, PL recovered to 70.00% (USD 243k accumulated) — a gain of ↑1.00pp in 24h against 69.00% at the close of May 22, returning part of the relevant decline of ↓6.00pp registered the day before. PSD at 16.45% stable, Republicanos at 4.45% (↑0.40pp), MDB at 4.65%, União Brasil at 4.30% (↓0.65pp), PSB at 3.80% (↑0.20pp), PT at 3.05% stable, Podemos at 2.45%, Novo at 1.00%, PSDB at 0.55%.

In the 2026 inflation bands, the market normalized post-anomaly of May 22. The 5.00–5.49% band returned as modal at 30.00% (↑4.15pp against 25.85% on May 22), 4.50–4.99% recovered to 26.40% (↑4.95pp against 21.45%), and the 5.50–5.99% band retracted to 12.05% (↓11pp against the peak of 23.05% registered on May 22). The spike of the 5.50–5.99% band the day before was a transitory anomaly, not structural migration — the center of the distribution returned to the ~5.0% range. High tails (≥6.50%) at 7.70% (↑0.15pp), stable.

2. What the institutes registered

There was no new national poll published on May 23, but the May 22 Datafolha continues to dominate coverage with additional breakdowns and institutional developments. The most-read figure of the day came from G1: 48% of voters argue that Flávio Bolsonaro should give up his candidacy following disclosure of conversations with Vorcaro — public opinion reading post-scandal of electoral scale.

In parallel, Datafolha also published on May 23 the institutional breakdown of approval for the Lula government, with consistent improvement: 32% rate the government as excellent or good against 28% in the previous round, and rejection fell to 38% against previous 41%. Folha registered the same data with the headline "Datafolha: Assessment of Lula government improves, but remains negative".

📅 Poll calendar — next 7 days

Polls registered at TSE with release scheduled between May 24 and May 30. Inclusion in table does not mean release confirmed — institutes may delay or cancel publication. Filter applied: sample ≥ 1,000. Each protocol linked to TSE public query.

Source: public TSE registry via disclosure portal and AFOS API. 🔥 highlights samples ≥ 3,000. The calendar highlight remains JOTA Jornalismo with n=6,000 scheduled for May 27. AtlasIntel and Datafolha synchronized for May 28 — if both release, it will be a day of dual institutional weight for the polling axis. Status "registered ≠ published" — confirmation of effective release requires verification of two primary sources before citation of figures.

3. What the press covered

On the Vorcaro case front, the institutional axis advanced. Luiz Fux voted to maintain the imprisonment of Daniel Vorcaro's father and cousin, a consecutive vote at the STF following André Mendonça's vote on May 22 — Estadão reported that "Fux advances his vote and the STF has a 2-0 score to maintain the imprisonment of Vorcaro's father and cousin", and Valor confirmed in a separate headline. The decision consolidates the STF axis against the Master group, despite Gilmar Mendes's request for more time registered on May 22. On the same axis, G1 reported that pressure for a Master CPI turned into a war of narratives in Congress, with seven initiatives awaiting analysis — institutional paralysis that extends the contradiction already registered on May 22 (Flávio signed only 2 of 5 Master CPI requests, according to Gazeta Mercantil).

On the government front, Lula was in Rio de Janeiro and directly attacked the PL with rhetoric of "a militiaman would come" if the State Assembly needed to appoint someone to replace the sitting governor — he made the statement to the acting governor, in an explicit signal to the territory of the PL in Rio. Folha de S.Paulo separately recorded the statement "Work to arrest all thieves, Lula tells interim RJ governor". In parallel on the legislative front, Lula and Chamber president Hugo Motta are preparing a meeting this Monday (May 26) to define the end of the 6x1 work schedule — positive institutional agenda that coincides with the improvement in government approval captured by Datafolha on May 23.

On Flávio Bolsonaro's side, two moves defined the day. BBC News Brasil reported that Flávio departed for the US seeking Trump and a "positive agenda amid crisis", under close watch by the Lula government — a trip that Folha de S.Paulo had pre-announced on May 22 as "bad for the government, which will not act to prevent the meeting". On the editorial coverage side, Folha de S.Paulo published that "the Dark Horse shakes Flávio on the right, but anti-PT sentiment is a shock absorber in the runoff", and JOTA registered that "the anti-PT electorate keeps Flávio Bolsonaro firm as an option to defeat Lula" — a shared reading between the two outlets that image deterioration registers but does not dismantle the Bolsonaro base. In a parallel column, Vinicius Torres Freire wrote for Folha de S.Paulo that "the Bolsonaros' split in Brazil was driven by the poor debate performance". On the international institutional axis, O Globo registered that U.S. Justice authorized that Alexandre de Moraes be notified by email in action filed by Rumble and Trump Media against the minister.

4. Divergences of the day

In summary

1. The reverberation of Datafolha May 22 dominated coverage on May 23 with no new national poll published. The additional G1 number (48% defend Flávio abdicate candidacy) and institutional improvement in Lula government approval (32% excellent/good against 28%; rejection falls from 41% to 38%) consolidated the direction of movement, but without registering additional displacement in Polymarket — Lula remained stable at 45.50% and Flávio yielded only ↓0.30pp to 27.75%. The market appears to have exhausted the reading on Friday itself.

2. The STF axis advanced against the Master group without moving the impeachment contract from baseline. Luiz Fux voted for maintenance of imprisonment of Daniel Vorcaro's father and cousin — score 2 to 0 with André Mendonça —, and Congress remains deadlocked on seven parallel Master CPI initiatives without installation. The Polymarket contract rose only ↑0.20pp to 6.65% in 24h, prolonging upward correction without amplifying.

3. Isolated movements of the day: Caiado and Flávio. Caiado recovered ↑0.60pp to 1.65% without specific triggering event — technical reading of post-anomalies recomposition from May 22. Flávio boarded for the US in search of Trump and "positive agenda amid crisis," according to BBC, under close watch of Lula government — trip pre-announced as "bad for the government" by Folha on May 22, without action to prevent.—

Sources consulted

Articles with direct link to news:

• O Globo — Fux vota para manter prisão de pai e primo de Vorcaro
• Estadão — Fux antecipa voto, e STF tem placar de 2 a 0 para manter prisões de pai e primo de Vorcaro
• Valor — Fux vota para manter pai e primo de Vorcaro presos
• O Globo — No Rio, Lula faz aceno a governador em exercício e diz que viria miliciano
• O Globo — Justiça dos EUA autoriza que Moraes seja notificado por email em ação de Rumble e Trump Media
• G1 — Pressão por CPI do Master vira guerra de narrativas no Congresso; sete iniciativas aguardam análise
• Folha — Dark Horse abala Flávio Bolsonaro na direita, mas antipetismo é amortecedor no 2º turno
• Folha — Trabalhe para prender todos os ladrões, diz Lula a governador interino do RJ
• Folha — Lula e Motta preparam reunião nesta 2ª para definir fim da 6x1
• Folha — Datafolha: Lula abre vantagem sobre Flávio após Dark Horse (May 22, reference round)
• Folha — Governo avalia como ruim eventual reunião entre Flávio e Trump, mas não vai atuar para impedir encontro (May 22)
• Polymarket — Brazil Presidential Election
• Polymarket — Brazil Presidential Election 2nd Place
• Polymarket — Brazil Presidential Election 3rd Place
• Polymarket — STF Justice impeachment before 2027
• Polymarket — Brazil Senate election most seats
• Polymarket — Brazil Annual Inflation 2026
• TSE — Public protocol consultation

Secondary articles (Google News redirect URL — click resolves to article):

• G1 — Datafolha: 48% defend that Flávio Bolsonaro should step back from candidacy
• G1 — Datafolha: 38% evaluate Lula government as bad or terrible; 32% as excellent or good
• Folha — Datafolha: Evaluation of Lula government improves, but remains negative
• BBC — Flávio Bolsonaro goes to USA in search of Trump and positive agenda amid crisis
• JOTA — Anti-PT electorate keeps Flávio Bolsonaro firm as option to defeat Lula
• Folha (Vinicius Torres Freire) — The Bolsonaros' split in Brazil driven by the bad debate thump

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Sources cited in this text: Folha de S.Paulo; O Globo; Estadão; Valor; G1; BBC News Brasil; JOTA; Datafolha; Polymarket; TSE disclosure portal.

Method: this synthesis is automatically generated from the auditable data of the AFOS Analytics platform, under versioned code rules in git. All claims can be verified on the platform or in the linked sources.

Integration: to see live data and detailed candidate analyses, access the full Dashboard. To understand the method in depth, read The Method.