Will the Republican party hold fewer than 45 Senate seats in the 120th Congress? — Below 45
Open on Kalshi ↗Yes last at 8¢
The catch
Independents who caucus with Republicans count as Republicans.
“Individuals caucusing with either party will be included with them (e.g. an Independent who caucuses with a party, like Vermont Senator Bernie Sanders who caucuses with the Democrats, would be counted as a Democrat).” · contract terms ↗
Pays out only if
The Republican party must have more than 57 Senate seats on February 1, 2027.
“If the Republican party has below 45 Senate seats on Feb 1, 2027, then the market resolves to Yes.” · market rules ↗Decided at the event on February 1, 2027
“The Expiration Date of the Contract shall be February 1 following the beginning of <term>, or the next date that data is available if it is not.” · contract terms ↗Counts as done when: composition as documented by Congress on the Expiration Date
“The Expiration Value is the value of the Underlying as documented by the Source Agency on the Expiration Date at the Expiration time.” · contract terms ↗Decided by: United States Congress, congress.gov
“The Source Agency is the United States Congress” · contract terms ↗
Does not count
- Republicans win exactly 57 seatsour reading
- Republicans win 58 seats but one senator switches parties or becomes independent before February 1our reading
- Republicans win 58+ seats but an independent who caucuses with them is not countedour reading
Watch out
- WATCHSome obvious wins don't count
WATCHThe venue keeps a right to review the outcome
“Before Settlement, Kalshi may, at its sole discretion, initiate the Market Outcome Review Process pursuant to Rule 6.3(c) of the Rulebook.” · contract terms ↗
Read on 2026-09-11. Click a line for the sentence it rests on. Facts and gaps only, not a prediction.
The rules, in plain English
If the Republican party has more than 57 Senate seats on February 1, 2027, then the market resolves to Yes.
What the rules leave open
What happens if a senator dies, resigns, or is not yet seated by February 1, 2027?
closest the rules come: “The Underlying for this Contract is the composition (identity and partisan membership of) the U.S. House of Representatives and the Senate on February 1 following the beginning of <term>.” · contract terms ↗How is caucusing status determined if an independent has not formally declared caucusing alignment by February 1?
closest the rules come: “Individuals caucusing with either party will be included with them (e.g. an Independent who caucuses with a party, like Vermont Senator Bernie Sanders who caucuses with the Democrats, would be counted as a Democrat).” · contract terms ↗