Rep. Kevin Hern commands 92% implied probability as the trader consensus frontrunner in Oklahoma's open Republican U.S. Senate primary on June 16, driven by his early March 11 campaign launch for Sen. Markwayne Mullin's seat—vacated by Mullin's Trump cabinet nomination for DHS secretary—and swift high-profile endorsements from President Trump on March 14, Senate Majority Leader John Thune, NRSC Chair Tim Scott, and Club for Growth. As former House Republican Policy Committee chair with a strong conservative record, Hern benefits from fragmented opposition and superior fundraising momentum in this safe-red state. Challengers like Lt. Gov. Matt Pinnell or Rep. Stephanie Bice trail far behind; realistic shifts would require a late heavyweight entry, scandal, or weak debate showings before the filing deadline.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedOklahoma Republican Senate Primary Winner
Oklahoma Republican Senate Primary Winner
Kevin Hern 92%
Nick Hankins 2.1%
Matt Pinnell 1.9%
Wayne Lonny Washington 1.9%
$56,833 Vol.
$56,833 Vol.
Kevin Hern
92%
Nick Hankins
2%
Matt Pinnell
2%
Wayne Lonny Washington
2%
Stephanie Bice
2%
Ron Meinhardt
2%
John M. O’Connor
1%
Markwayne Mullin
1%
Tammy Swearengin
<1%
Donelle Harder
<1%
Kevin Hern 92%
Nick Hankins 2.1%
Matt Pinnell 1.9%
Wayne Lonny Washington 1.9%
$56,833 Vol.
$56,833 Vol.
Kevin Hern
92%
Nick Hankins
2%
Matt Pinnell
2%
Wayne Lonny Washington
2%
Stephanie Bice
2%
Ron Meinhardt
2%
John M. O’Connor
1%
Markwayne Mullin
1%
Tammy Swearengin
<1%
Donelle Harder
<1%
If no 2026 Oklahoma 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 Oklahoma Republican party, however an overwhelming consensus of credible reporting may suffice.
Market Opened: Mar 5, 2026, 5:09 PM ET
Resolver
0x69c47De9D...If no 2026 Oklahoma 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 Oklahoma Republican party, however an overwhelming consensus of credible reporting may suffice.
Resolver
0x69c47De9D...Rep. Kevin Hern commands 92% implied probability as the trader consensus frontrunner in Oklahoma's open Republican U.S. Senate primary on June 16, driven by his early March 11 campaign launch for Sen. Markwayne Mullin's seat—vacated by Mullin's Trump cabinet nomination for DHS secretary—and swift high-profile endorsements from President Trump on March 14, Senate Majority Leader John Thune, NRSC Chair Tim Scott, and Club for Growth. As former House Republican Policy Committee chair with a strong conservative record, Hern benefits from fragmented opposition and superior fundraising momentum in this safe-red state. Challengers like Lt. Gov. Matt Pinnell or Rep. Stephanie Bice trail far behind; realistic shifts would require a late heavyweight entry, scandal, or weak debate showings before the filing deadline.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated



Beware of external links.
Beware of external links.
Frequently Asked Questions