Memo: Texas Republican runoff

To: Interested Parties
From: Change Research
Date: March 19, 2026
Re: Survey Results

 

The following summarizes key findings from a survey of 807 potential Texas Republican runoff voters interviewed from March 17-19, 2026:

  • Ken Paxton holds a small 42% to 39% edge in the runoff election for the Republican nomination to the U.S. Senate. Less than a fifth (19%) say they are undecided or indicate they would not vote in this contest. Paxton leads with Republicans who identify as strong Republicans, MAGA Republicans, Independents who lean Republican, voters under 65, non college graduates, evangelical Christians, and voters in Houston, small metros, and in rural areas. Cornyn leads with Republicans who don’t identify strongly with the party, non MAGA Republicans, voters over 65, college graduates, non evangelical Christians, and those in the Dallas, Fort Worth, Austin, and San Antonio metro areas. Paxton holds on to 92% of those who voted for him on March 3rd and leads 46% to 33% with Wesley Hunt’s voters. Cornyn only holds on to 83% of his voters. He has a small lead with those who did not vote in the March primary.
Paxton Cornyn Und Leader
All Voters 42 39 16 +3 Paxton
Strong Republican 48 36 14 +12 Paxton
Not Strong Republican 27 49 23 +22 Cornyn
Independent/Lean Republican 47 32 14 +15 Paxton
MAGA Republican 54 35 12 +19 Paxton
Not MAGA Republican 22 51 23 +29 Cornyn
Not Sure MAGA 34 41 23 +7 Cornyn
March Paxton Voter 92 3 5 +89 Paxton
March Cornyn Voter 6 83 11 +77 Cornyn
March Hunt Voter 49 31 16 +18 Paxton
Not a March Voter 26 31 33 +5 Cornyn
18-49 42 29 19 +13 Paxton
50-64 48 38 12 +10 Paxton
65+ 40 43 16 +6 Cornyn
Women 40 38 19 +2 Paxton
Men 45 40 12 +5 Paxton
Non College Graduate 45 35 17 +10 Paxton
College Graduate 40 43 14 +3 Cornyn
Dallas – Ft. Worth 38 46 13 +8 Cornyn
Houston 43 36 18 +7 Paxton
Austin-San Antonio 36 50 12 +14 Cornyn
Other Metro 46 31 18 +15 Paxton
Non Metro 48 34 16 +14 Paxton
Evangelical 48 36 14 +12 Paxton
Non Evangelical 35 43 17 +8 Cornyn

 

  • President Donald Trump’s endorsement can play a more significant role for Paxton than for Cornyn. Paxton leads 50% to 40% if Trump endorses him. Cornyn leads 44% to 41% if Trump endorses him, but does not reach 50% and he still trails with Wesley Hunt voters.
All Voters Paxton Cornyn Hunt Did Not Vote
Initial Vote
Paxton 42 92 6 49 26
Cornyn 39 3 83 31 31
Not sure 16 5 11 16 33
Would Not Vote 3 0 1 4 10
  Net Paxton +3 +89 -77 +18 -5
Trump Endorses Paxton
Paxton 50 96 11 56 42
Cornyn 40 2 81 33 34
Not sure 8 2 7 10 17
Would Not Vote 1 0 1 1 7
  Net Paxton +10 +94 -70 +23 +8
Trump Endorses Cornyn
Paxton 41 85 4 46 30
Cornyn 44 10 86 35 37
Not sure 12 4 10 16 23
Would Not Vote 3 0 1 2 10
  Net Paxton -3 +75 -82 +11 -7

 

  • Ken Paxton is more popular than John Cornyn. Half (49%) view Paxton favorably while just 30% have an unfavorable one. Voters split on Cornyn – 40% are favorable towards him while 39% are unfavorable. More than half (52%) of Wesley Hunt voters view Cornyn unfavorably compared to just 22% who are favorable towards him. Non March primary voters are split (30% favorable, 35% neutral, 29% unfavorable). 
  • Republican runoff voters select immigration (52%), affordability (43%), and election integrity (40%) as the top issues in this election. March Paxton voters focus more on immigration (63%) and election integrity (59%) than affordability (36%). Wesley Hunt voters prioritize issues similarly to Paxton’s (50% immigration, 48% election integrity, 39% affordability). Cornyn voters care more about immigration (53%) and affordability (46%) than election integrity (33%). 

 

Methodology
Polling was conducted online from March 17-19, 2026. Using Dynamic Online Sampling and text messaging to attain a representative sample, Change Research polled 811 voters in Texas who say they could vote in the May Republican primary runoff election. Post-stratification was performed on age, gender, race/ethnicity, education, region, and March primary vote. The final results have a margin of error of 3.5 percentage points.