InsiderAdvantage poll
Fielded 5/13/2026 – 5/14/2026 · 800 respondents · Likely voters
Result
Share of respondents (remainder shown as undecided / other)
Lindsey Graham (R)
55.5%
Mark Lynch (R)
13.3%
Calvin Cowen (R)
2.8%
Darius Mitchell (R)
2.1%
Thomas Dismukes (R)
1.5%
Pat Herrmann (R)
0.5%
About this poll
- Pollster
- InsiderAdvantage
- Field dates
- Wednesday, May 13, 2026 – Thursday, May 14, 2026
- Sample
- 800 · Likely voters
- Sponsors
- —
- Internal poll
- No
- Published
- Friday, May 15, 2026
- Source
- insideradvantage.com (opens in a new tab)
- Data feed
- The New York Times (via PollResults.org)
- Last updated