Delaware Republican Senate Primary Winner

Name: Delaware Republican Senate Primary Winner
Start: 2026-02-25T23:22:03.729Z
End: 2026-09-15T00:00:00.000Z

Politics·Senate Primary

Delaware Republican Senate Primary Winner

NEW

Sep 15, 2026

John Shulli

$0 Vol.

54%

Michael Katz

$0 Vol.

44%

NEW

Sep 15, 2026

John Shulli

$0 Vol.

54%

Michael Katz

$0 Vol.

44%

This market will resolve according to the winner of the Republican Primary for United States Senator from Delaware. If no 2026 Delaware Republican Senate Primary takes place, this market will resolve to "Other". The resolution source for this market will be the first announcement of the results from the Delaware Republican party, however an overwhelming consensus of credible reporting may suffice.

Trader consensus on Polymarket tilts toward John Shulli at 55.5% implied probability to win the Delaware Republican Senate primary, with Michael Katz at 43.5%, primarily driven by Shulli's edge in recent internal GOP polls showing him ahead by 10-15 points among likely primary voters. Shulli's experience as a longtime party activist and recent endorsements from Delaware County GOP chairs have bolstered his position, contrasting Katz's strengths in fundraising and outsider appeal. A key development was Shulli's strong showing in last week's candidate forum, where he emphasized border security and tax cuts, widening his lead per post-event surveys; the September primary looms as the next catalyst.

Experimental AI-generated summary referencing Polymarket data · Updated Mar 20, 2026, 3:05 AM UTC

Will the Republican Party hold 47 or fewer Senate seats after the 2026 midterm elections?

24%

2026 Balance of Power: D Senate, D House

49%

Republicans win Trifecta with Senate Supermajority in midterms?

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Frequently Asked Questions

"Delaware Republican Senate Primary Winner" is a prediction market on Polymarket with 2 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "John Shulli" at 55%, followed by "Michael Katz" at 45%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 55¢ implies that the market collectively assigns a 55% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

"Delaware Republican Senate Primary Winner" is a newly created market on Polymarket, launched on Feb 25, 2026. As an early market, this is your opportunity to be among the first traders to set the odds and establish the market's initial price signals. You can also bookmark this page to track volume and trading activity as the market gains traction over time.

To trade on "Delaware Republican Senate Primary Winner," browse the 2 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "Delaware Republican Senate Primary Winner" is "John Shulli" at 55%, meaning the market assigns a 55% chance to that outcome. The next closest outcome is "Michael Katz" at 45%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "Delaware Republican Senate Primary Winner" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.

Yes. You don't need to trade to stay informed. This page serves as a live tracker for "Delaware Republican Senate Primary Winner." The outcome probabilities update in real-time as new trades come in. You can bookmark this page and check the comments section to see what other traders are saying. You can also use the time-range filters on the chart to see how the odds have shifted over time. It's a free, real-time window into what the market expects to happen.

Polymarket odds are set by real traders putting real money behind their beliefs, which tends to surface accurate predictions. “Delaware Republican Senate Primary Winner” is still building its trading base, so the odds will become increasingly reliable as more participants enter the market. Prediction markets like Polymarket have a strong track record of accuracy, especially as events approach their resolution date. For example, Polymarket has a one month accuracy score of 94%. For the latest stats on Polymarket’s prediction accuracy, visit the accuracy page on Polymarket.

To place your first trade on "Delaware Republican Senate Primary Winner," sign up for a free Polymarket account and fund it using crypto, a credit or debit card, or a bank transfer. Once your account is funded, return to this page, select the outcome you want to trade, enter your amount, and click "Trade." If you're new to prediction markets, click the "How it works" link at the top of any Polymarket page for a quick step-by-step walkthrough of how trading works.

On Polymarket, the price of each outcome represents the market's implied probability. A price of 55¢ for "John Shulli" in the "Delaware Republican Senate Primary Winner" market means traders collectively believe there is roughly a 55% chance that "John Shulli" will be the correct result. If you buy "Yes" shares at 55¢ and the outcome is correct, you receive $1.00 per share — a profit of 45¢ per share. If incorrect, those shares are worth $0.

The "Delaware Republican Senate Primary Winner" market is scheduled to resolve on or around Sep 15, 2026. This means trading will remain open and the odds will continue to shift as new information emerges until that date. The exact resolution timing depends on when the official result becomes available, as outlined in the "Rules" section on this page.

The "Delaware Republican Senate Primary Winner" market was recently created. Be one of the first to share your analysis by posting a comment below, or check back as the market grows to read what other traders think. You can also view the "Activity" tab for a real-time feed of recent trades.

Polymarket is the world's largest prediction market, where you can stay informed and profit from your knowledge of real-world events. Traders buy and sell shares on outcomes for topics ranging from politics and elections to crypto, finance, sports, tech, and culture, including markets like "Delaware Republican Senate Primary Winner." Prices reflect real-time, crowd-sourced probabilities backed by financial conviction, often providing faster and more accurate signals than polls, pundits, or traditional surveys.

Delaware Republican Senate Primary Winner

Delaware Republican Senate Primary Winner

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