Incumbent Sen. John Cornyn holds a slim edge over Attorney General Ken Paxton in Polymarket odds for the Texas Republican Senate primary on March 5, driven by his establishment fundraising and broad GOP network against Paxton's Trump-aligned base energized by his impeachment acquittal. Recent University of Houston polling shows Cornyn at 36% and Paxton at 27% with high undecideds, but trader consensus anticipates a potential May 28 runoff amid low expected turnout favoring motivated conservatives. The race stays tight due to Cornyn's bipartisan dealmaking drawing primary fire while Paxton's legal troubles linger; separation could come from a Donald Trump endorsement, early vote tallies, or last-minute attack ads highlighting Paxton's indictments.
Experimental AI-generated summary referencing Polymarket data · UpdatedTexas Republican Senate Primary Winner
Texas Republican Senate Primary Winner
John Cornyn 51%
Ken Paxton 49%
Dawn Buckingham <1%
Beth Van Duyne <1%
$12,378,024 Vol.
$12,378,024 Vol.

John Cornyn
51%

Ken Paxton
49%

Dawn Buckingham
<1%

Beth Van Duyne
<1%

Wesley Hunt
<1%
John Cornyn 51%
Ken Paxton 49%
Dawn Buckingham <1%
Beth Van Duyne <1%
$12,378,024 Vol.
$12,378,024 Vol.

John Cornyn
51%

Ken Paxton
49%

Dawn Buckingham
<1%

Beth Van Duyne
<1%

Wesley Hunt
<1%
If no 2026 Texas 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 Texas Republican party, however an overwhelming consensus of credible reporting may suffice.
Market Opened: Jul 10, 2025, 5:11 PM ET
Resolver
0x2F5e3684c...Resolver
0x2F5e3684c...Incumbent Sen. John Cornyn holds a slim edge over Attorney General Ken Paxton in Polymarket odds for the Texas Republican Senate primary on March 5, driven by his establishment fundraising and broad GOP network against Paxton's Trump-aligned base energized by his impeachment acquittal. Recent University of Houston polling shows Cornyn at 36% and Paxton at 27% with high undecideds, but trader consensus anticipates a potential May 28 runoff amid low expected turnout favoring motivated conservatives. The race stays tight due to Cornyn's bipartisan dealmaking drawing primary fire while Paxton's legal troubles linger; separation could come from a Donald Trump endorsement, early vote tallies, or last-minute attack ads highlighting Paxton's indictments.
Experimental AI-generated summary referencing Polymarket data · Updated



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