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 Monmouth University Polling Institute as Left-Center Biased based on polling that moderately 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 (-3.4)
Factual Reporting: HIGH (1.5)
Country: USA
MBFC’s Country Freedom Rating: MOSTLY FREE
Media Type: Organization/Foundation
Traffic/Popularity: Minimal Traffic
MBFC Credibility Rating: HIGH CREDIBILITY
History
Monmouth University Polling Institute, Inc. is a research organization based in West Long Branch, New Jersey. According to their about page, “The Monmouth University Polling Institute was established to be a leading center for the study of public opinion on critical national and state issues. The Polling Institute’s mission is to foster greater public accountability by ensuring that the public’s voice is heard in the policy discourse.”
Read our profile on the United States media and government.
Funded by / Ownership
Monmouth University Polling Institute is owned and operated by Monmouth University.
Analysis / Bias
Monmouth University Polling Institute conducts political research and polling on a wide range of topics, including elections. The website reports news on its various polls.
Polling bias is assessed using Silver Bulletin’s mean-reverted bias metric. For Monmouth University, the mean-reverted polling bias is −2.00, indicating a Moderate Democratic lean. Under MBFC’s calibrated polling bias scale, a mean bias between -1.6 and -2.0 corresponds to a polling bias score of -4. Polling bias accounts for 70% of the final bias score, while editorial bias accounts for 30%.
Applying MBFC’s weighted formula:
(−4 × 0.70) + (−3 × 0.30) = −3.4
Based on MBFC’s bias classification scale, a final score of -3.4 places Monmouth University 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 in the Last 5 years
Overall, we rate Monmouth University Polling Institute as Left-Center Biased based on polling that moderately favors the left. We also rate them as a High Factual pollster based on an A- rating in predictive polling. (D. Van Zandt 10/26/2024) Updated (02/20/2026)
Source: https://www.monmouth.edu/polling-institute/
Last Updated on February 20, 2026 by Media Bias Fact Check
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Left vs. Right Bias: How we rate the bias of media sources