Will Mike Lee be the next chair of the United States Senate Committee on the Judiciary before Jan 1, 2028
Liquidity-weighted aggregate sits at 30% across 3 Kalshi contracts.
Implied probability
Kalshi
30%
3 contracts
Polymarket
—
not bound
Cross-venue gap
—
single venue
24h move
—
no pin
24h volume
$0
3 contracts
Closes
Jan 8, 2028
501 days
30-day trend
Bracket families
3 clusters across 3 contracts.
These contracts were grouped by title similarity. The headline aggregate combines all clusters; verify the cluster you actually need before quoting a number.
Cluster 1
Will Mike Lee be the next chair of the United States Senate Committee on the Judiciary before Jan 1, 2028
Cluster 2
Will Ted Cruz be the next chair of the United States Senate Committee on the Judiciary before Jan 1, 2028
Cluster 3
Will Sheldon Whitehouse be the next chair of the United States Senate Committee on the Judiciary before Jan 1, 2028
Analysis
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.
- ›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
What moved the line
- Aug 23Sheldon Whitehouse↑12pp23→35¢ · Kalshi
- Aug 22Mike Lee↑5pp36→41¢ · Kalshi
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These markets stopped trading. Last odds and any captured outcome are shown above — full settlement detail lives at the venue.
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How we compute these odds
SimpleFunctions aggregates live prediction-market contracts from Kalshi and Polymarket. Each slug groups contracts that resolve on the same underlying event, identified by venue event_id.
For binary slugs, the headline probability is the liquidity-weighted mid-price across all bound contracts. For multi-outcome slugs (e.g. elections with 3+ candidates), the headline is the leader’s price; we never arithmetically average disjoint outcomes — that would produce a number with no real-world meaning.
Snapshots refresh every 5 minutes during market hours; daily aggregates are computed at 04:00 UTC. The 30-day sparkline is drawn from per-ticker daily means stored in market_indicator_daily; 24h delta and movement events are derived from the same source.
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