United States / 2026 United States Senate election in North Carolina
Opinion Diagnostics
Voting intention · fieldwork ended 20 Sept 2026
- Country
- 🇺🇸 United States
- Election
- 2026 United States Senate election in North Carolina
- Polling institute
- Opinion Diagnostics
- Published
- Not stated by the source
- Fieldwork
- 17 Sept 2026 – 20 Sept 2026
- Sample size
- 857
- Margin of error
- ±3.3
- Methodology
- Not published
Results
Opinion Diagnostics, 20 Sept 2026: Cooper (D) leads with 51.0%, 10.0 points ahead of Whatley (R).
- Roy Cooper (D)51.0%+1.0 percentage points
- Michael Whatley (R)41.0%±0.0 percentage points
Change in percentage points vs. the previous poll by the same institute for this election.
Note: The source states no publication date; dated by the end of fieldwork.
How to read a poll
- Sample size is how many people were asked. More people means less random error, never none.
- ±3 is the margin of error: the real figure is likely within 3 points either way of the one shown.
- Two polls can differ because they were taken on different dates, with different methods and different samples.
- est. means the institute did not publish a margin of error, so it is estimated from the sample size.
- The average smooths this out: it combines recent polls, so one unusual poll cannot swing the picture.