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Bing News

-1.55
Lean LeftLean Left biasWhat does this mean?

How we determined this rating:

  • Independent Review
  • AllSides has medium confidence in this bias rating.

Unless otherwise noted, this bias rating refers only to online news coverage, not TV, print, or radio content.

Learn about our bias rating methods
Contents
  1. About Bing News's Bias Rating
  2. What a "Lean Left" Rating Means
  3. Bias Reviews
  4. Confidence Level
  5. Ownership & Funding

About Bing News's Bias Rating

Bing News is a news aggregator source with an AllSides Media Bias Rating™ of Lean Left.

This bias rating is for Bing News. View the AllSides Media Bias Rating for Bing Search here.

What a "Lean Left" Rating Means

Sources with an AllSides Media Bias Rating of Lean Left display media bias in ways that moderately align with liberal, progressive, or left-wing thought and/or policy agendas. A Lean Left bias is a moderately liberal rating on the political spectrum.

Learn more about Lean Left ratings

Bias Reviews

We use multiple methods to analyze sources. Learn how we rate media bias.

Bing News Biased to the Left: 2025 Analysis Finds 73% of Articles from the Left

An AllSides analysis of Bing News conducted in September 2025 found that it displayed more sources with an AllSides Media Bias Rating™ on the left than the center or right, largely aligning with data from previous years. This did result in AllSides moving Bing News' Bias Meter rating very slightly rightward, from -1.8 to -1.55.

Of 177 articles evaluated over a two-week period in 2025, Bing News displayed:

  • 72% of articles from outlets AllSides rates on the left
  • 22% from the center
  • 5% from the right
  • 2% Not Rated by AllSides.

The analysis looked explicitly at Bing News’ “Top Stories” and “U.S. News” sections, which are not personalized for individual users.

Read the full report here.

Breaking down the bias ratings further:

  • 15% of Bing News articles were from outlets rated Left
  • 56% Lean Left
  • 22% Center
  • 1% Lean Right
  • 3% Right

Note: Percentages are rounded to whole numbers; totals may not sum exactly due to rounding.

The top five sources appearing the most often were Associated Press (Left bias), USA Today (Lean Left bias), Washington Post (Lean Left bias), ABC News (Lean Left bias), and Wall Street Journal News (Center bias). (All bias ratings as of 2025).

In the “Top Stories” section alone, the AllSides found 80% of articles were from outlets on the left (18% Left, 63% Lean Left), 18% from Center-rated outlets, and 2% from outlets on the right (2% Right, 0% Lean Right).

Compared to our 2023 analysis of Bing’s “Top Stories” section, the results were relatively stable. In 2025, there was a 3% decline in outlets on the left, 4% gain in Center-rated outlets, and 1% gain in outlets on the right. 

Bing News Biased Toward Lean Left Media Outlets: March 2023 AllSides Bias Analysis 

A March 2023 AllSides analysis found that on Bing News’ homepage, 83% of articles displayed over a two-week period were from media outlets on the left, 13% were from sources in the center, and 0% were from sources on the right. Based on this analysis, AllSides issued a media bias rating of Lean Left for Bing News. 

The top news outlets displayed on Bing News’ homepage were the Associated Press, USA Today, ABC News, NBC News, and the Washington Post, all rated Lean Left at the time of analysis.

On Bing’s Politics page, 51% of articles were from outlets on the left, 28% from the center, and 8% from the right.

For selected search topics, such as “economy” and “abortion,” outlets on the right made up between 7-18% of resulting articles, and outlets on the left made up between 34-63% of articles. Each search term resulted in  more outlets from the left than the right. 

Learn more about the AllSides Bing News Bias Analysis™ and get full results here: Bing News Shows Lean Left Bias | AllSides

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Confidence Level

Confidence is determined by how many reviews have been applied and consistency of data.

As of June 2026, AllSides has medium confidence in our Lean Left rating for Bing News. An Editorial Review or Blind Bias Survey has affirmed this rating, or multiple reviews have returned differing results. If we perform more bias reviews and gather consistent data, this confidence level will increase.

Bing News Ownership and Funding

Funding and ownership do not influence bias ratings. We rate the bias of content only.

Owner: Microsoft

Bing News is a news aggregator owned and operated by Microsoft. It curates content from various news media outlets. 

Bing News is powered by Microsoft Start, which the company describes as a “personalized news feed and collection of informational content… from premium publishers [with] timely updates tailored to your interests…” Microsoft Start is also available as a mobile application, widget in Microsoft Windows 11, taskbar toolbar in Microsoft Windows 10, and more.