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 Data for Progress as Left-Center Biased based on polling that slightly favors the left and political advocacy that strongly favors a progressive perspective. We also rate them as a Mostly Factual pollster based on a B rating in predictive polling and no failed fact checks.
Detailed Report
Bias Rating: LEFT-CENTER (-4.3)
Factual Reporting: MOSTLY FACTUAL (3.0)
Country: USA
MBFC’s Country Freedom Rating: MOSTLY FREE
Media Type: Organization/Foundation
Traffic/Popularity: Minimal Traffic
MBFC Credibility Rating: HIGH CREDIBILITY
History
Data for Progress is a progressive think tank and research organization based in Washington, DC. According to their about page, “Data for Progress is a progressive think tank and polling firm arming movements with the tools they need to fight for a more equitable future. Led by a team of policy and data experts, we produce quality polling, data-based messaging, and policy generation for progressive causes, campaigns, and candidates. “
Read our profile on the United States media and government.
Funded by / Ownership
Data for Progress is a 501(c)(4) nonprofit organization and a project of Tides Advocacy. Revenue is generated through donations to ActBlue and sales of services.
Analysis / Bias
Data for Progress conducts political research and polling on progressive issues and elections. The website publishes briefs and reports on their polling. Most polls conducted are on those that favor a progressive left perspective like this: Voters See Trump as a Greater Threat to Democracy, Think Trials Are Fair and Should Be Expedient. The website also highlights its issues of concern, such as Climate Change, LGBTQ Rights, Workers’ Rights, Social Justice, and Healthcare. All of these positions align with a left-leaning perspective. Finally, in 2020, Data for Progress supported Bernie Sanders for President.
Polling bias is assessed using Silver Bulletin’s mean-reverted bias metric. For Data For Progress, the mean-reverted polling bias is −1.59, indicating a slight Democratic lean. Under MBFC’s calibrated polling bias scale, a mean bias between -1.5 and -1.0 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) + (−7 × 0.30) = −4.3
Based on MBFC’s bias classification scale, a final score of -4.3 places Data For Progress in the Left-Center category.
Factual reporting is rated Mostly Factual based on a Silver Bulletin grade of B, indicating solid predictive accuracy and good methodological performance.
Failed Fact Checks
- None to date
Overall, we rate Data for Progress as Left-Center Biased based on polling that slightly favors the left and political advocacy that strongly favors a progressive perspective. We also rate them as a Mostly Factual pollster based on a B rating in predictive polling and no failed fact checks. (D. Van Zandt 06/04/2024) Updated (02/11/2026)
Source: https://www.dataforprogress.org/
Last Updated on February 11, 2026 by Media Bias Fact Check
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Left vs. Right Bias: How we rate the bias of media sources