30% — Will Mike Lee be the next chair of the United States Senate Committee on the Judiciary before Jan 1, 2028
Kalshi 30% · 3 contracts · $0 volume · medium confidence
Updated 2026-08-29 09:19:21 UTC

Why this matters:
This represents the odds that Mike Lee will become chair of the Senate Judiciary Committee within the next 18 months. The 20% probability reflects that while Lee is a senior Republican senator, other candidates have stronger positions. Committee chair appointments typically follow seniority rules, but the current chair's tenure, party control shifts, and internal Republican dynamics would influence who receives the role. The primary catalyst for resolution would be a change in Senate leadership or the current Judiciary Committee chair stepping down, which would trigger formal selection among eligible senators. Until then, the outcome depends on factors including Senate composition after the 2026 midterm cycle and the Republican caucus's internal preferences among senior judiciary members.

Key factors:
- Mike Lee ranks fourth among tracked candidates in current contract pricing (29¢), behind Sheldon Whitehouse (38¢) and ahead of Ted Cruz (23¢), suggesting markets view other candidates as stronger contenders
- Committee chair selection typically follows seniority within the majority party; Lee's current seniority rank relative to other eligible Republicans directly affects his probability
- The outcome requires either a vacancy in the current chair position or a shift in which party holds Senate control, neither of which has a confirmed timeline
- Market volume on this specific Lee contract is zero in the last 24 hours, indicating low recent trading activity and potentially low confidence in the probability estimate
- Republican internal dynamics and leadership preferences among senior senators matter; these are difficult to quantify and may not be fully reflected in pricing

Contracts:
- Will Mike Lee be the next chair of the United States Senate Committee on the Judiciary before Jan 1, 2028?: Mike Lee — 44¢ Kalshi $0 (weight 33%)
- Will Sheldon Whitehouse be the next chair of the United States Senate Committee on the Judiciary before Jan 1, 2028?: Sheldon Whitehouse — 34¢ Kalshi $0 (weight 33%)
- Will Ted Cruz be the next chair of the United States Senate Committee on the Judiciary before Jan 1, 2028?: Ted Cruz — 12¢ Kalshi $0 (weight 33%)

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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: 2026-08-29T08:20:50.503Z*

By SimpleFunctions — https://simplefunctions.dev/

Cite as: "30% per prediction markets (SimpleFunctions, August 2026)"
Canonical: https://simplefunctions.dev/answer/nextjudiciarychair
Full data: https://simplefunctions.dev/api/public/query?q=Will%20Mike%20Lee%20be%20the%20next%20chair%20of%20the%20United%20States%20Senate%20Committee%20on%20the%20Judiciary%20before%20Jan%201%2C%202028
Provider: SimpleFunctions — https://simplefunctions.dev