President Trump's anticipated endorsement in the Texas GOP Senate primary runoff between incumbent Sen. John Cornyn and Attorney General Ken Paxton dominates trader focus, with no announcement as of late March despite repeated teases. Paxton's recent positive meeting with Trump and overwhelming MAGA grassroots support have eroded establishment backing for Cornyn, including from the NRSC and Senate Leadership Fund, while polls show Paxton leading even without it. Trump has praised both as electable but expects his pick—likely soon—to prompt the other to drop out ahead of the May 26 runoff. Historical Trump endorsements boast high primary success rates, amplifying uncertainty until his decision.
Experimental AI-generated summary referencing Polymarket data · Updated$110,144 Vol.

Ken Paxton - TX-Sen
72%

Steve Hilton - CA-Gov
66%

Susan Collins - ME-Sen
63%

John Cornyn - TX-Sen
35%

Andy Barr - KY-Sen
38%
$110,144 Vol.

Ken Paxton - TX-Sen
72%

Steve Hilton - CA-Gov
66%

Susan Collins - ME-Sen
63%

John Cornyn - TX-Sen
35%

Andy Barr - KY-Sen
38%
If Donald Trump does not announce an endorsement by the day before the scheduled election at 11:59 PM ET, this market will resolve to "No".
The resolution source for this market will be official information from Donald Trump or one of his representatives, or a consensus of credible reporting of Donald Trump's endorsement.
Market Opened: Sep 12, 2025, 4:29 PM ET
Resolver
0x65070BE91...If Donald Trump does not announce an endorsement by the day before the scheduled election at 11:59 PM ET, this market will resolve to "No".
The resolution source for this market will be official information from Donald Trump or one of his representatives, or a consensus of credible reporting of Donald Trump's endorsement.
Resolver
0x65070BE91...President Trump's anticipated endorsement in the Texas GOP Senate primary runoff between incumbent Sen. John Cornyn and Attorney General Ken Paxton dominates trader focus, with no announcement as of late March despite repeated teases. Paxton's recent positive meeting with Trump and overwhelming MAGA grassroots support have eroded establishment backing for Cornyn, including from the NRSC and Senate Leadership Fund, while polls show Paxton leading even without it. Trump has praised both as electable but expects his pick—likely soon—to prompt the other to drop out ahead of the May 26 runoff. Historical Trump endorsements boast high primary success rates, amplifying uncertainty until his decision.
Experimental AI-generated summary referencing Polymarket data · Updated



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