Same market, different prices
Polymarket, Kalshi, and Limitless often price the same outcome differently — sometimes by 3–8 percentage points. Mantis finds the gap automatically.
Prediction Markets
Political Prediction Markets — 2026 Midterms & More
The 2026 US midterms are 5 months out and prediction market prices for House and Senate control vary across Polymarket, Kalshi, and PredictIt. Mantis queries all venues at once so you always see the full cross-venue picture — not just one platform's line.
Why cross-venue comparison matters
Best line, not just any line
Every market card links to the highest-liquidity venue first so you can execute on the tightest spread, not just the venue you happen to use.
One search, all venues
Type any question at mantiss.store — no account required. The MCP API lets AI agents route market questions programmatically.
Featured Political Prediction Markets — 2026 Midterms & More
Markets below are sorted by liquidity. Click a title to see the full cross-venue comparison — current probabilities, spread, and direct trade links.
Polymarket
Will the U.S. invade Iran before 2027
18% YES
Liquidity $1.1M
Polymarket
Will Elissa Slotkin win the 2028 US Presidential Election
1% YES
Liquidity $976K
Myriad
US Presidential Election Winner 2028
44% YES
Liquidity $800K
Polymarket
Will JD Vance win the 2028 US Presidential Election
21% YES
Liquidity $458K
Polymarket
Will Luiz Inácio Lula da Silva win the 2026 Brazilian presidential election
66% YES
Liquidity $336K
Polymarket
Will Renan Santos win the 2026 Brazilian presidential election
8% YES
Liquidity $283K
Polymarket
Will the Democratic Party control the Senate after the 2026 Midterm elections
45% YES
Liquidity $280K
Polymarket
US-Iran Final Nuclear Deal by August 31, 2026
5% YES
Liquidity $270K
Polymarket
US-Iran Final Nuclear Deal by December 31, 2026
36% YES
Liquidity $176K
Polymarket
Will James Fishback be the Republican nominee for Florida Governor
2% YES
Liquidity $168K
Polymarket
Israel x Iran ceasefire continues through August 2
98% YES
Liquidity $162K
Polymarket
Will Yair Golan be the next Prime Minister of Israel
1% YES
Liquidity $139K
Polymarket
Iran leadership change by August 31
3% YES
Liquidity $118K
Polymarket
Will Iran announce withdrawal from MOU negotiations by August 15
2% YES
Liquidity $100K
Polymarket
US x Iran Effective Ceasefire by August 31
75% YES
Liquidity $98K
Polymarket
US x Iran Effective Ceasefire by August 14
68% YES
Liquidity $98K
Polymarket
Israel x Iran ceasefire continues through August 3
97% YES
Liquidity $84K
Polymarket
Iran leadership change by September 30
7% YES
Liquidity $84K
All Politics Prediction Market Hubs
Every curated politics hub — each with live cross-venue odds, market context, and FAQ. Jump to a topic to compare prices across Polymarket, Kalshi, Limitless and more.
FAQ
Where can I find 2026 midterm prediction markets?
Mantis aggregates midterm markets (House control, Senate control, individual Senate seats) from Polymarket, Kalshi, and PredictIt. Prices often differ by 2–5 percentage points across venues — Mantis detects these gaps automatically.
Does Mantis route trades directly?
Mantis is a comparison and routing layer — the final trade happens on your chosen venue. Every outbound link preserves referral attribution so the platform earns from your click.