Kevin Hern holds a commanding lead in the Republican primary for Oklahoma's open U.S. Senate seat, driven by his established congressional record, name recognition across the state, and early endorsement from President Trump following Markwayne Mullin's confirmation as homeland security secretary. The June 16 primary date leaves limited time for lesser-known challengers such as Nick Hankins or John M. O’Connor to gain traction through fundraising or voter outreach. Trader consensus at 94 percent for Hern reflects these structural advantages in a solidly Republican state, though late developments including any personal controversies, shifts in national party dynamics, or unexpected health issues could still open pathways for alternative outcomes before ballots are cast.
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
Kevin Hern 95%
John M. O’Connor <1%
Wayne Lonny Washington <1%
Nick Hankins <1%
$59,653 Vol.
$59,653 Vol.
Kevin Hern
95%
John M. O’Connor
1%
Wayne Lonny Washington
1%
Nick Hankins
1%
Stephanie Bice
1%
Markwayne Mullin
<1%
Donelle Harder
<1%
Ron Meinhardt
<1%
Tammy Swearengin
<1%
Matt Pinnell
<1%
Kevin Hern 95%
John M. O’Connor <1%
Wayne Lonny Washington <1%
Nick Hankins <1%
$59,653 Vol.
$59,653 Vol.
Kevin Hern
95%
John M. O’Connor
1%
Wayne Lonny Washington
1%
Nick Hankins
1%
Stephanie Bice
1%
Markwayne Mullin
<1%
Donelle Harder
<1%
Ron Meinhardt
<1%
Tammy Swearengin
<1%
Matt Pinnell
<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...Kevin Hern holds a commanding lead in the Republican primary for Oklahoma's open U.S. Senate seat, driven by his established congressional record, name recognition across the state, and early endorsement from President Trump following Markwayne Mullin's confirmation as homeland security secretary. The June 16 primary date leaves limited time for lesser-known challengers such as Nick Hankins or John M. O’Connor to gain traction through fundraising or voter outreach. Trader consensus at 94 percent for Hern reflects these structural advantages in a solidly Republican state, though late developments including any personal controversies, shifts in national party dynamics, or unexpected health issues could still open pathways for alternative outcomes before ballots are cast.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated


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