The Winston Group is rated Left-Center with High factual reporting by Media Bias Fact Check.
LEFT-CENTER BIAS
These media sources have a slight to moderate liberal bias. They often publish factual information that utilizes loaded words (wording that attempts to influence an audience by appeals to emotion or stereotypes) to favor liberal causes. These sources are generally trustworthy for information but may require further investigation. See all Left-Center sources.
- Overall, we rate The Winston Group as Left-Center Biased based on polling that slightly favors the left. We also rate them as a High Factual pollster based on an A- rating in predictive polling.
Detailed Report
Bias Rating: LEFT-CENTER (-2.1)
Factual Reporting: HIGH (1.0)
Country: USA
MBFC’s Country Freedom Rating: MOSTLY FREE
Media Type: Organization/Foundation
Traffic/Popularity: Minimal Traffic
MBFC Credibility Rating: HIGH CREDIBILITY
History
The Winston Group is a polling organization based in Washington, DC. According to their about page, “The Winston Group is a strategic planning and survey research firm in Washington, DC.”
Read our profile on the United States media and government.
Funded by / Ownership
The Winston Group is a privately owned company. Revenue is generated through the sales of services.
Analysis / Bias
The Winston Group conducts political research and polling on a wide range of topics, including elections. The website does not publish news. The organization primarily serves Republican candidates, but its polling leans left.
Polling bias is assessed using Silver Bulletin’s mean-reverted bias metric. For the Winston Group, the mean-reverted polling bias is −1.03, indicating a slight Democratic lean. Under MBFC’s calibrated polling bias scale, a mean bias between -1.0 and -1.5 corresponds to a polling bias score of -3. Polling bias accounts for 70% of the final bias score, while editorial bias accounts for 30%.
Applying MBFC’s weighted formula:
(−3 × 0.70) + (−0 × 0.30) = −2.1
Based on MBFC’s bias classification scale, a final score of -2.1 places the Winston-Group in the Left-center category.
Factual reporting is rated High based on a Silver Bulletin grade of A-, indicating solid predictive accuracy and good methodological performance.
Failed Fact Checks
- None to date
Overall, we rate The Winston Group as Left-Center Biased based on polling that slightly favors the left. We also rate them as a High Factual pollster based on an A- rating in predictive polling. (D. Van Zandt 12/06/2024) Updated (02/23/2026)
Source: https://www.winstongroup.net/
Last Updated on February 23, 2026 by Media Bias Fact Check
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Left vs. Right Bias: How we rate the bias of media sources