Louisiana GOP Runoff – June 2026

Julia Letlow leads John Fleming by eight points heading into Louisiana’s Republican Senate runoff, with almost no undecided vote left to move.

Released June 26, 2026 · Conducted by CivicLens Research

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Key findings

• Letlow leads 51.5% to 43.3%. The gap is outside the margin of error two days before the runoff.
• The race is close to settled. Only 5.2% are undecided — too few to close an eight-point gap even if they broke entirely one way.
• Turnout intent is high. 92.2% say they are extremely likely to vote, with another 6.1% very likely.
• The runoff electorate is strongly conservative. 85.8% identify as conservative overall, half of them very conservative.

US Senate runoff

Candidate	Support
Julia Letlow	51.5%
John Fleming	43.3%
Not sure / undecided	5.2%

Letlow crosses 50% outright, meaning Fleming would need to win essentially every remaining undecided voter and pull support away from her to close the gap in the final days.

Q2: “In the runoff for US Senate the candidates are Julia Letlow and John Fleming. If the election were held today, for whom would you vote?”

The electorate

Ideology	Share
Very conservative	50.2%
Somewhat conservative	35.6%
Total conservative	85.8%
Moderate	11.0%
Liberal	1.3%
Not sure	1.9%

The runoff electorate is 93.3% white and heavily older, with 45% of respondents 65 or over. Education splits 15.0% high school or less, 44.0% some college or vocational training, 28.0% college graduates and 13.0% post-graduate.

The full file

Every question in the order asked, with full wording and demographics: