Governors and senators from the opposite party is a one-time elections series on Kalshi, with markets like “Will the number of states in which the winner of the 2026 gubernatorial general election and the winner of a 2026 U.S. Senate general election (including special elections) are nominees of different political parties be at least 8 2026 midterms?”. The Kalshi Eye archive lists 15 of its markets and has 13 days of daily Parquet files from October 12, 2026 to October 24, 2026 (2 MB), with every order book change and trade.

Venue: Kalshi, series KXGOVSENDIFF
Category: Elections, one-time
Markets: 15 (0 settled, 15 open)
Files: 13 days, October 12, 2026 to October 24, 2026, 2 MB, 278,511 rows
Datasets: Order book (L2, incremental), Order book snapshots (top 10, 1 second), Top of book (every change), Top of book (1-minute bars), Trades

Open Governors and senators from the opposite party in Markets to see every day and market, then export the days you need. Free sample files of each dataset are on the Kalshi data page.

Reading the files

Every KXGOVSENDIFF trade on October 24, 2026, in DuckDB:

SELECT ts_recv, ticker, yes_price, size, taker_side
FROM 'kalshieye-data/trades/date=2026-10-24/series=KXGOVSENDIFF/trades-KXGOVSENDIFF-2026-10-24.parquet'
ORDER BY ts_recv;

To test a strategy on this series, see How to backtest Kalshi markets.

Related Kalshi series

How many seats will party win in state? (KXHOUSEWINSTATE): 102 markets, 13 days of files
Spanish general election party vote share (KXVOTESPAIN): 30 markets, 13 days of files
Next leader of the Conservative Party of British Columbia (KXBCCONLEAD): 11 markets, 13 days of files
Quebec Liberal Party seat count (KXQCPLQSEATS): 10 markets, 6 days of files
Vote percentages in US general elections (KXVOTEGENERAL): 9,314 markets, 13 days of files
Midterm margin of victory (KXMIDTERMMOV): 5,190 markets, 13 days of files

Figures through October 24, 2026. All Kalshi series with pages are listed on Kalshi series.