Recent polls, including a late-May Des Moines Register survey showing Josh Turek at 26% and Zach Wahls at 24%, underscore the razor-thin margin fueling trader consensus on Polymarket, where Turek holds a slim 50.5% implied probability over Wahls at 46%. Turek's stronger fundraising—over $1 million raised, including self-funding—and appeal to moderate Democrats contrast with Wahls' progressive grassroots support from his Iowa House tenure and past campaigns. High undecided voters (around 40%) and Iowa's history of low Democratic primary turnout keep the race volatile. Separation could come from big-name endorsements, a final debate on May 30, or early absentee ballot trends ahead of the June 4 primary.
Experimental AI-generated summary referencing Polymarket data · UpdatedJosh Turek 55%
Zach Wahls 37%
Chris Henry 2.0%
Nathan Sage <1%
Josh Turek
50%
Zach Wahls
46%
Chris Henry
2%
Nathan Sage
1%
Josh Turek 55%
Zach Wahls 37%
Chris Henry 2.0%
Nathan Sage <1%
Josh Turek
50%
Zach Wahls
46%
Chris Henry
2%
Nathan Sage
1%
If no 2026 Iowa Democratic 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 Iowa Democratic party, however an overwhelming consensus of credible reporting may suffice.
Market Opened: Nov 13, 2025, 2:11 PM ET
Resolver
0x2F5e3684c...Resolver
0x2F5e3684c...Recent polls, including a late-May Des Moines Register survey showing Josh Turek at 26% and Zach Wahls at 24%, underscore the razor-thin margin fueling trader consensus on Polymarket, where Turek holds a slim 50.5% implied probability over Wahls at 46%. Turek's stronger fundraising—over $1 million raised, including self-funding—and appeal to moderate Democrats contrast with Wahls' progressive grassroots support from his Iowa House tenure and past campaigns. High undecided voters (around 40%) and Iowa's history of low Democratic primary turnout keep the race volatile. Separation could come from big-name endorsements, a final debate on May 30, or early absentee ballot trends ahead of the June 4 primary.
Experimental AI-generated summary referencing Polymarket data · Updated



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