House · 3 November 2026

CA-17 House 2026

97.8% DRo Khanna leads TruthIndex™Safe D

Polymarket: 97.4%
Kalshi: 98.5%
Spread: 1.1 pts
24h: –
7 days: −0.7
Updated: Oct 16, 2026, 1:45 PM ET

Ro Khanna, last 60 days

How to read this chart

The green line is the TruthIndex™, the chance of this outcome. It combines the prices on both venues and gives more weight to the venue with more money in its order book. The two thinner lines are Polymarket's and Kalshi's own prices, and the grey band between them shows how far apart the two venues are.

The pale bands behind the lines are the rating zones (Toss-up, Lean, Likely and Safe), so you can see when the race moved from one rating to another. Move along the chart, or use the arrow keys, to read the values for each day.

All outcomes

Outcome	TruthIndex™		Polymarket	Kalshi	Spread	24h
DRo Khanna	97.8%		97.4%	98.5%	1.1 pts	–
RRitesh Tandon	2.4%		2.5%	1.8%	0.7 pts	–

Polymarket Kalshi

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Candidates & Background

Ritesh Tandon

Republican

Ritesh Tandon, a Republican tech executive and perennial candidate, faces Democratic incumbent Ro Khanna in the 2026 election for California's 17th congressional district after placing second in the top-two primary.

Full candidate profile →

Ro Khanna

Democratic U.S. Representative for California's 17th congressional district (since 2017)

Ro Khanna, a Democrat who has represented California's 17th congressional district in the U.S. House since 2017, faces Republican Ritesh Tandon, a tech executive, in his 2026 reelection race.

Born 1976 · Philadelphia, Pennsylvania

Full candidate profile →

Margin of victory

Each venue's margin market, shown on its own: the two venues set their ranges differently.

Kalshi0 contracts

California's 17th District margin of victory

Khanna, 39+ pts		86.9%
Khanna, 42+ pts		–
Khanna, 45+ pts		–
Khanna, 48+ pts		45.0%
Khanna, 51+ pts		–
Khanna, 54+ pts		16.0%
Khanna, 57+ pts		6.4%
Khanna, 60+ pts		4.1%
Khanna, 63+ pts		3.3%

Source: Kalshi market

Polymarket$320 traded

CA-17 House Election Margin of Victory

Republican Wins		–
Democrat 0-20%		4.0%
Democrat 20-30%		5.5%
Democrat 30-35%		–
Democrat 35-40%		–
Democrat 40-45%		–
Democrat 45-50%		–
Democrat 50-55%		–
Democrat 55-60%		–
Democrat 60%+		–

Source: Polymarket market

Each venue's market

Polymarket$16.7K traded

Prices which party wins.

Ro Khanna: Counted · bid 96.5% / ask 98.4% · $2.0K within 5 pts

This market will resolve according to the party of the candidate who wins the CA-17 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026. A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources. This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).

Full rules on Polymarket

Kalshi1.2K contracts traded