Quebec 2026 Election: Who Will Form Government?
Quebec's political landscape has been completely reshaped. The CAQ has collapsed from 90 seats and 41% of the vote in 2022 to 9% in polls — the worst since the party was created. The PQ and PLQ are now tied at 33% each. New Liberal leader Charles Milliard has surged since February. The Montreal-regions divide is stark: effectively two different elections in one province. Most likely outcome: PQ minority (35%), but PQ majority (30%) and PLQ government (22%) are both realistic.
Probability Scores
Current Polling (Léger, March 2026)
| Party | Polling | 2022 Seats | Change |
|---|---|---|---|
| PQ | 33% | 3 | ▲ from 15% |
| PLQ | 33% | 21 | ▲ from 14% |
| QS | 15% | 11 | ≈ stable |
| PCQ | 10% | 0 | ▲ from 0 |
| CAQ | 9% | 90 | ▼ from 41% |
The Regional Divide
This is effectively two different elections in one province:
Five Scenarios
1. PQ Minority Government
PQ wins most seats but falls short of majority. Likely confidence-and-supply with QS. Referendum delayed. Most probable scenario given current dynamics.
Drivers: PQ-PLQ split limits both. QS holds Montreal seats PQ needs. Regional francophone vote goes PQ.
2. PQ Majority Government
PQ wins outright. Plamondon becomes Premier. Independence referendum becomes realistic within mandate. Francophone vote consolidates around PQ.
Conditions: Requires PQ 38%+ and PLQ stalls at current levels.
3. PLQ Government
Liberal resurgence continues. Milliard captures suburban swing voters fleeing CAQ. Montreal + suburbs + anglophone/allophone vote creates path.
Blocker: PLQ still toxic in francophone regions. Hard to win without breakthrough there.
4. CAQ Survival / Kingmaker
New CAQ leader (likely Drainville) stabilizes party. CAQ doesn't win but survives as third party, potentially kingmaker.
Blocker: 9% polling is a catastrophic floor. Legault legacy weighs on party.
5. Fragmented Result / Political Crisis
No clear winner. PQ, PLQ, CAQ each win 30-45 seats. QS/PCQ hold balance. Unstable minority or coalition. Possible early election within 18 months. FPTP usually prevents this, but five-party fragmentation makes it non-zero.
Cascade Scenarios
| Trigger | Probability | Cascade |
|---|---|---|
| Plamondon commits to referendum | 40-50% | Race becomes binary — federalist vote consolidates to PLQ, PQ base energized but soft nationalists flee. Result: PQ majority OR PLQ, nothing between. |
| Trump tariffs hit Quebec economy | 20-25% | Economic anxiety reshapes everything. Benefits PLQ (stability) OR PQ (sovereignty as escape) depending on framing. |
| Drainville aggressive anti-sovereignty campaign | 15-20% | CAQ consolidates federalist-nationalist vote, rises to 18-22%. Three-way race. |
| Milliard gaffe or scandal | 10-15% | New leader untested. Major mistake collapses PLQ momentum. PQ wins by default. |
| QS-PQ electoral cooperation | 5-10% | Left-sovereignist alliance, non-compete in key ridings. Combined 45%+ makes clear PQ majority. |
What to Watch
Invalidation Criteria
This analysis would require significant revision if: CAQ recovers above 20% in sustained polling (3+ consecutive polls); a major federal crisis (constitutional, economic) reframes the entire election; Plamondon steps down or a PQ leadership challenge emerges; or Milliard is replaced as PLQ leader before October.
Resolution Tracking
| Prediction | Deadline | Our Call | Outcome | Correct? |
|---|---|---|---|---|
| PQ forms government (majority or minority) | 2026-10-06 | 65% likely (combined PQ scenarios) | TBD | TBD |
| CAQ wins fewer than 20 seats | 2026-10-06 | 75% likely | TBD | TBD |
| PLQ wins more seats than CAQ | 2026-10-06 | 85% likely | TBD | TBD |
| No party wins outright majority (125 seats, 63 needed) | 2026-10-06 | 55% likely | TBD | TBD |
| Sovereignty referendum announced within 12 months of PQ government | 2027-10-06 | 25% likely (conditional on PQ majority) | TBD | TBD |
Verdict
PQ minority is the most likely single outcome at 35% — but this election is genuinely competitive.
The CAQ collapse is historic: from 90 seats and 41% of the vote to 9% in polls. This is what a political implosion looks like in real time. The beneficiaries are split between PQ (in francophone Quebec) and PLQ (in Montreal), creating two parallel elections in one province. The sovereignty question is the key wildcard — if Plamondon commits to a referendum, it forces voters to choose sides and eliminates the middle ground that has defined Quebec politics since 1995.
Confidence: 50%. Six months is a long time. Quebec elections are historically volatile — the CAQ itself went from nothing to government in a single cycle (2018). Every scenario above 5% is genuinely plausible.
Uncertainty type: Moderate (democratic election with observable polling). Framework: D/E/M/A (Data Quality · Epistemic · Model · Aleatoric). Published 6 April 2026. All predictions will be scored with Brier scores on resolution dates.
References
ScenarioAtlas publishes all predictions with full uncertainty disclosure. We track hits and misses — Brier scores published on resolution.
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