26% — Will J.D. Vance cast exactly 3 tie-breaking vote in the Senate in 2026
Leader: 2 at 26% · Kalshi 26% · 6 contracts · $613 volume · medium confidence
Updated 2026-07-13 06:45:08 UTC

Tracks the leading outcome in a winner-take-all prediction market set with 6 outcomes.

Why this matters:
This market estimates a 23% chance that Vice President J.D. Vance will cast exactly three tie-breaking votes in the Senate during 2026. Tie-breaking votes occur when the chamber splits 50-50 on legislation, making the Vice President's vote decisive. The current probability reflects expectations about Senate composition, legislative activity, and partisan divisions. Higher tie-breaking frequency would result from narrow Republican majorities and contentious legislation, while lower frequency would stem from larger majorities or greater bipartisan consensus. The probability will shift based on actual tie-vote counts as bills move through the chamber, with the year's legislative calendar and any special elections affecting Senate math being key variables.

Key factors:
- Current Republican Senate seat advantage or deficit compared to 50-50 split
- Historical frequency of Senate tie votes in comparable partisan environments (data from recent Congressional sessions)
- Legislative agenda intensity and controversial bills scheduled for 2026 votes
- Whether any Senate vacancies or special elections alter seat distribution during the year
- Definition precision: whether the contract counts only floor votes or includes procedural/committee tie-breaks

Contracts:
- Will J.D. Vance cast exactly 2 tie-breaking vote in the Senate in 2026?: 2 — 26¢ Kalshi $300 (weight 49%)
- Will J.D. Vance cast exactly 3 tie-breaking vote in the Senate in 2026?: 3 — 23¢ Kalshi $0 (weight 0%)
- Will J.D. Vance cast exactly 4 tie-breaking vote in the Senate in 2026?: 4 — 6¢ Kalshi $0 (weight 0%)
- Will J.D. Vance cast exactly 1 tie-breaking vote in the Senate in 2026?: 1 — 4¢ Kalshi $313 (weight 51%)
- Will J.D. Vance cast exactly 5 tie-breaking vote in the Senate in 2026?: 5 — 3¢ Kalshi $0 (weight 0%)
- Will J.D. Vance cast exactly 6 tie-breaking vote in the Senate in 2026?: 6 — 3¢ Kalshi $0 (weight 0%)

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## Methodology

SimpleFunctions aggregates live YES-side prices from Kalshi and Polymarket contracts bound to this question. For binary topics the headline is the liquidity-weighted mid-price (weight = log(1 + 24h volume) × freshness, where freshness is 1.0 if updated <24h, 0.7 if <7d, 0.4 otherwise). For multi-outcome (winner-take-all) topics the headline is the current leader's price — disjoint outcomes are never arithmetically averaged. Snapshots refresh every 5 minutes during market hours.

## SF Signal

- SF Index, regime, and 30d Brier calibration are computed separately and surfaced at https://simplefunctions.dev/admin/calibration.
- No SimpleFunctions index / regime / calibration signal is bound to this topic yet — the headline above is market-derived only.

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*Last verified: 2026-07-13T06:20:52.226Z*

By SimpleFunctions — https://simplefunctions.dev/

Cite as: "26% per prediction markets (SimpleFunctions, July 2026)"
Canonical: https://simplefunctions.dev/answer/vpbreaks
Full data: https://simplefunctions.dev/api/public/query?q=Will%20J.D.%20Vance%20cast%20exactly%203%20tie-breaking%20vote%20in%20the%20Senate%20in%202026
Provider: SimpleFunctions — https://simplefunctions.dev