Election markets are some of the most actively traded prediction markets anywhere, and US races draw heavy attention well before any votes are counted. From primaries and individual contests to control of the House and Senate, platforms price each outcome continuously as polls, fundraising, and events shift the landscape. MassPredict gathers live US election odds from Polymarket, Kalshi, ForecastEx and more into one view.
The spread between platforms is especially revealing in politics, where different trader pools can read the same race very differently. When one platform prices a contest as a toss-up and another leans clearly one way, that divergence tells you the outcome is genuinely uncertain. You compare the prices directly and draw your own conclusions.
Coverage spans races, primaries, control of Congress, and election-night outcomes. MassPredict lines the platforms up side by side and leaves the interpretation to you.
Kash Patel out as FBI Director? — Before Dec 1, 2026
KALSHI · YES 7% · NO 93% · $97.5K vol
Red wave in 2026?
KALSHI · YES 5% · NO 95% · $51.7K vol
Winner of France’s presidential election - Jordan Bardella
FUTUUR · YES 18% · NO 82% · $49.6K vol
Winner of France’s presidential election - Marine Le Pen
FUTUUR · YES 50% · NO 50% · $49.6K vol
Winner of France’s presidential election - Dominique de Villepin
FUTUUR · YES 9% · NO 91% · $49.6K vol
Winner of France’s presidential election - Gabriel Attal
FUTUUR · YES 9% · NO 91% · $49.6K vol
Winner of France’s presidential election - Édouard Philippe
FUTUUR · YES 26% · NO 74% · $49.6K vol
Winner of France’s presidential election - Jean-Luc Mélenchon
FUTUUR · YES 11% · NO 89% · $49.6K vol
US Presidential Election Winner in 2028 - Kamala Harris
FUTUUR · YES 9% · NO 91% · $40.0K vol
US Presidential Election Winner in 2028 - Alexandria Ocasio-Cortez
FUTUUR · YES 9% · NO 91% · $40.0K vol
US Presidential Election Winner in 2028 - Marco Rubio
FUTUUR · YES 26% · NO 74% · $40.0K vol
US Presidential Election Winner in 2028 - Gavin Newsom
FUTUUR · YES 28% · NO 72% · $40.0K vol
US Presidential Election Winner in 2028 - JD Vance
FUTUUR · YES 28% · NO 72% · $40.0K vol
When will Kari Lake be confirmed as Ambassador to Jamaica? — Before Apr 1, 2027
KALSHI · YES 24% · NO 76% · $20.1K vol
When will Ukraine hold a presidential election? — Before 2027
KALSHI · YES 6% · NO 94% · $18.5K vol
When will Kari Lake be confirmed as Ambassador to Jamaica? — Before Jan 1, 2027
KALSHI · YES 22% · NO 78% · $17.9K vol
Who will visit the White House in 2026? — John Ternus
KALSHI · YES 16% · NO 84% · $16.4K vol
Who will visit the White House in 2026? — Reza Pahlavi
KALSHI · YES 5% · NO 95% · $14.1K vol
2026 Midterms: House popular vote margin of victory? (Directional) — Democrats, ≥10%
KALSHI · YES 40% · NO 60% · $10.7K vol
2026 Midterms: House popular vote margin of victory? (Directional) — Democrats, ≥6%
KALSHI · YES 87% · NO 13% · $9.2K vol
2026 Midterms: House popular vote margin of victory? (Directional) — Democrats, ≥8%
KALSHI · YES 64% · NO 36% · $9.1K vol
When will Kimberly Greenwood be confirmed as U.S. Ambassador to Barbados? — Before Dec 1, 2026
KALSHI · YES 6% · NO 94% · $8.6K vol
When will Wesley Hunt be confirmed as U.S. Ambassador to Saudi Arabia? — Before Dec 1, 2026
KALSHI · YES 3% · NO 97% · $7.0K vol
Who will visit the White House in 2026? — Mark Carney
KALSHI · YES 42% · NO 58% · $7.0K vol
Who will visit the White House in 2026? — Abiy Ahmed
KALSHI · YES 11% · NO 89% · $6.7K vol
Who will visit the White House in 2026? — Hakeem Jeffries
KALSHI · YES 37% · NO 63% · $6.4K vol
2027 French Presidential Election: who will be on the ballot? — Gabriel Attal
KALSHI · YES 24% · NO 76% · $5.3K vol
Who will visit the White House in 2026? — Bill Maher
KALSHI · YES 87% · NO 13% · $5.3K vol
Who will visit the White House in 2026? — Abdel Fattah al-Sisi
KALSHI · YES 39% · NO 61% · $4.7K vol
2027 French Presidential Election: who will be on the ballot? — Éric Zemmour
KALSHI · YES 81% · NO 19% · $4.7K vol
Who will visit the White House in 2026? — Gavin Newsom
KALSHI · YES 10% · NO 90% · $4.4K vol
Who will visit the White House in 2026? — Anutin Charnvirakul
KALSHI · YES 10% · NO 90% · $4.1K vol
Who will visit the White House in 2026? — Marjorie Taylor Greene
KALSHI · YES 2% · NO 98% · $3.9K vol
2027 French Presidential Election: who will be on the ballot? — Bruno Retailleau
KALSHI · YES 55% · NO 45% · $3.0K vol
2026 Midterms: House popular vote margin of victory? (Directional) — Democrats, ≥12%
KALSHI · YES 19% · NO 81% · $3.0K vol
2027 French Presidential Election: who will be on the ballot? — Raphaël Glucksmann
KALSHI · YES 79% · NO 21% · $2.9K vol
2027 French Presidential Election: who will be on the ballot? — François Hollande
KALSHI · YES 30% · NO 70% · $2.8K vol
2026 Midterms: House popular vote margin of victory? (Directional) — Democrats, ≥2%
KALSHI · YES 95% · NO 5% · $2.7K vol
Who will visit the White House in 2026? — Eric Adams
KALSHI · YES 12% · NO 88% · $2.5K vol
2026 Midterms: House popular vote margin of victory? (Directional) — Democrats, ≥4%
KALSHI · YES 94% · NO 6% · $2.0K vol
Who will visit the White House in 2026? — Barack Obama
KALSHI · YES 3% · NO 97% · $2.0K vol
Pete Hoekstra out as US Ambassador to Canada? — Before Dec 12, 2026
KALSHI · YES 8% · NO 92% · $1.9K vol
2027 French Presidential Election: who will be on the ballot? — Dominique de Villepin
KALSHI · YES 37% · NO 63% · $1.7K vol
Who will visit the White House in 2026? — Joe Biden
KALSHI · YES 3% · NO 97% · $1.6K vol
Natalie Harp White House departure announced? — Before Nov 1, 2026
KALSHI · YES 13% · NO 87% · $1.4K vol
Who will visit the White House in 2026? — Abelardo de la Espriella
KALSHI · YES 12% · NO 88% · $1.1K vol
Natalie Harp White House departure announced? — Before Jan 1, 2027
KALSHI · YES 14% · NO 86% · $1.0K vol
Natalie Harp White House departure announced? — Before Dec 1, 2026
KALSHI · YES 9% · NO 91% · $705 vol
Who will visit the White House in 2026? — Hun Manet
KALSHI · YES 2% · NO 98% · $660 vol
2027 French Presidential Election: who will be on the ballot? — Bernard Cazeneuve
KALSHI · YES 10% · NO 90% · $624 vol
2027 French Presidential Election: who will be on the ballot? — Édouard Philippe
KALSHI · YES 90% · NO 10% · $614 vol
2026 Midterms: House popular vote margin of victory? (Directional) — Democrats, ≥16%
KALSHI · YES 4% · NO 96% · $579 vol
2027 French Presidential Election: who will be on the ballot? — Olivier Faure
KALSHI · YES 5% · NO 95% · $542 vol
When will Kimberly Greenwood be confirmed as U.S. Ambassador to Barbados? — Before Mar 1, 2027
KALSHI · YES 26% · NO 74% · $400 vol
2027 French Presidential Election: who will be on the ballot? — Jordan Bardella
KALSHI · YES 3% · NO 97% · $382 vol
2027 French Presidential Election: who will be on the ballot? — Fabien Roussel
KALSHI · YES 79% · NO 21% · $382 vol
2027 French Presidential Election: who will be on the ballot? — Karim Bouamrane
KALSHI · YES 3% · NO 97% · $365 vol
2027 French Presidential Election: who will be on the ballot? — François Asselineau
KALSHI · YES 14% · NO 86% · $338 vol
2026 Midterms: House popular vote margin of victory? (Directional) — Democrats, ≥14%
KALSHI · YES 4% · NO 96% · $329 vol
Who will visit the White House in 2026? — Bola Ahmed Tinubu
KALSHI · YES 12% · NO 88% · $230 vol
US Elections prediction markets — FAQ
How do election prediction markets work?
Traders buy and sell shares tied to a candidate or party winning, and the price reflects the market's implied probability of that result. Prices update continuously as new information arrives.
Are prediction markets more accurate than polls?
They aggregate money-backed opinions rather than survey responses, which can capture sentiment differently from polling. Neither is a guarantee, and prediction markets are informational only, not advice.
Why do election odds differ across prediction platforms?
Separate trader bases, liquidity, and risk appetite produce different prices for the same race. Comparing platforms shows where the market genuinely disagrees about an outcome.
When do US election markets resolve?
They resolve once the race is called against the market's stated criteria, typically after results are official or projected per its rules. Always check the specific resolution terms.
What does a 52% price mean in an election market?
It reflects a roughly 52% implied chance that the named candidate or party wins, a near toss-up. It is a live market read, not a prediction of the final result.