President Trump's endorsements carry substantial weight in Republican primaries, boasting a high success rate among backed candidates in 2026 races. Trader consensus reflects anticipation around his pending decision in the Texas U.S. Senate GOP primary runoff on May 26 between incumbent John Cornyn and challenger Ken Paxton, following Trump's May 8 statement that he will endorse one "relatively soon" amid tied polls. He recently endorsed Rep. Andy Barr ahead of Kentucky's May 19 Senate primary, sidelining initial contender Nate Morris for an administration role. Maine Sen. Susan Collins faces a June primary challenge with no Trump endorsement yet. Markets hinge on official announcements before respective election dates.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated$141,016 Vol.

Ken Paxton - TX-Sen
57%

Susan Collins - ME-Sen
45%

John Cornyn - TX-Sen
30%
$141,016 Vol.

Ken Paxton - TX-Sen
57%

Susan Collins - ME-Sen
45%

John Cornyn - TX-Sen
30%
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 endorsements carry substantial weight in Republican primaries, boasting a high success rate among backed candidates in 2026 races. Trader consensus reflects anticipation around his pending decision in the Texas U.S. Senate GOP primary runoff on May 26 between incumbent John Cornyn and challenger Ken Paxton, following Trump's May 8 statement that he will endorse one "relatively soon" amid tied polls. He recently endorsed Rep. Andy Barr ahead of Kentucky's May 19 Senate primary, sidelining initial contender Nate Morris for an administration role. Maine Sen. Susan Collins faces a June primary challenge with no Trump endorsement yet. Markets hinge on official announcements before respective election dates.
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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