How many Senate and House seats will Republicans have after the midterms?: how this market works

What you need to know

This market is asking two things at once: how many seats will Republicans hold in the Senate, and how many seats will they hold in the House, after the November 2026 elections. Each answer option pairs a Senate number with a House range, so you are picking a combined outcome. For context, the Senate has 100 seats and the House has 435, so the numbers in this market reflect whether Republicans gain, hold steady, or lose ground in one or both chambers. The market settles based on the total Republican seat counts in both chambers after all November 2026 races are decided. For the House, only seats up in November 2026 count. For the Senate, it combines seats won in November with seats whose terms are not expiring. All three resolution sources, the Associated Press, Fox News, and NBC, must agree on race calls. If any runoff could change the final outcome, the market stays open until that runoff is settled. Vacant seats with no election are assigned to the party of the most recent holder. None of the provided news headlines are relevant to this market. The Katy Perry story involves a music dispute with the White House, and the Netanyahu visit is a foreign policy item. Neither tells us anything about how 2026 congressional races are shaping up. The kinds of developments worth watching would be candidate announcements, polling in competitive districts, fundraising numbers, and any shifts in the political environment between now and Election Day. This market covers the results of hundreds of individual races more than a year away, which makes precision very hard. Both chambers are competitive, and the outcome depends on factors that do not yet exist: candidate quality in each race, the national political mood by late 2026, economic conditions, and turnout. The spread across the listed options, with no single outcome above 18%, shows the market sees real uncertainty across many combinations. Small swings in a handful of close races could shift the final count meaningfully in either direction.

The odds right now

• 47–49 and 193–207+17.1 pts (1w)19%
• ≥53 and ≤207-18.1 pts (1w)19%
• ≥53 and 208–222-15.5 pts (1w)18%
• 47–49 and ≥208-23.4 pts (1w)17%
• ≤46 and 193–207-24.6 pts (1w)17%
• 50–52 and 208–222-20.9 pts (1w)16%
• 50–52 and 193–207-15.5 pts (1w)12%
• 50–52 and ≤192-32.0 pts (1w)9%
• ≤46 and ≥208-0.1 pts (1w)5%
• ≤46 and ≤192-1.5 pts (1w)5%
• 47–49 and ≤192-36.2 pts (1w)5%
• 50–52 and ≥223-32.9 pts (1w)3%

Price history

How this resolves

Resolves November 3, 2026

The 2026 midterm elections are scheduled to be held on November 3, 2026. This market will resolve according to the number of seats held by the Republican Party in both the US House of Representatives and the US Senate as a result of the 2026 midterm elections. Read the full resolution rules on the live market page.

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