Numerous books and studies have addressed the question of
political bias in the American media. Various broadcast and online outlets exhibit both liberal and conservative bias. Commentary, editorial and opinion is more biased than factual news reporting in the mainstream media, and concerns have been raised as the lines between commentary and journalism are increasingly blurred. In reaction to this, there has been a growth of independent
fact-checking and algorithms to assess bias.
Liberal Senator
Barry Goldwater, a conservative, was the first Republican to allege liberal media bias during his
1964 presidential campaign. According to a study by Lars Willnat and David H. Weaver, professors of journalism at
Indiana University, conducted via online interviews with 1,080 reporters between August and December 2013, 38.8% of American journalists identify as "leaning left" (28.1% identify as Democrats), 12.9% identify as "leaning right" (7.1% as Republicans), and 43.8% as "middle of the road" (50.2% as independents). A 2018 study by Axios/SurveyMonkey found that 92% of Republicans believed that the media intentionally reported false news. A 2020 study in
Science Advances found that while a majority of journalists identify as liberals/Democrats, there is little evidence of liberal bias in which stories journalists choose to cover in their reporting; however, the study distinguishes story
selection (
gatekeeping bias) from bias in how a story may be
slanted (
presentation bias). A 2021 research paper published by the
Tow Center for Digital Journalism found that American conservatives believe "that the American press blames, shames and ostracizes conservatives," citing
media coverage of COVID-19 and
Donald Trump, but that they were "not primarily upset that the media get facts wrong, nor even that journalists push a liberal policy agenda". Tech companies and social media sites have been accused of censorship by some conservative groups, although there is little or no evidence to support these claims. Conservatives who have found their content affected by platforms' attempts to reduce the reach of false or unreliable content have characterized this as the
shadow banning of conservative social media accounts; the
Nieman Foundation for Journalism at Harvard investigated these claims and found no evidence that conservatives were being shadow-banned.
Conservative Perceived liberal bias was cited by
Roger Ailes as a reason for setting up
Fox News. Whilst there has been research into
The Wall Street Journal editorial page's adopting more conservative perspectives on economics since Rupert Murdoch's acquisition of the company, its news reporting is part of the journalistic mainstream and is committed primarily to factual reporting. However, critics claim that newer right-leaning media outlets, including
Breitbart News,
NewsMax, and
WorldNetDaily have a core mission to promote a conservative or right-wing agenda, and often support a hierarchy based on race, religion, nationality, or gender. The same article from the
CJR states that in the late 20th century, a right-wing media "ecosystem" developed in parallel to mainstream journalism, leading to an asymmetric polarization in conservative media. Critics point out that while mainstream, left-leaning media may impose reputational costs on those who propagate rumor and coalescences around corrected narratives, the conservative media "ecosystem" creates
positive feedback for bias-confirming statements as a central feature of its normal operation. A 2007 study, using the introduction of Fox News into local markets (1996–2000) as an instrumental variable, found that in the 2000 presidential election, "Republicans gained 0.4 to 0.7 percentage points in the towns that broadcast Fox News, which suggests that "Fox News convinced 3 to 28 percent of its viewers to vote Republican, depending on the audience measure." A 2017 study, using channel positions as an instrumental variable, found "Fox News increases Republican vote shares by 0.3 points among viewers induced into watching 2.5 additional minutes per week by variation in position." Liberal news and opinion website
Vox has accused conservatives of creating "panics" that have spread through the media.
The New Yorker magazine, which is known for its openly left-leaning content and audience, similarly accused
Christopher Rufo of inventing conflict over
critical race theory. Following widespread controversy over an
American Eagle Outfitters ad campaign which many accused of promoting
eugenics and
white supremacy,
The New York Times reported that there was limited initial backlash and criticized right-wing media and commentators for exaggerating the issue.
MSNBC supported the campaign's backlash. Mainstream media outlets have been accused of over-representing
climate change denialism as a result of efforts to create a
false balance, lending disproportionate credence and weight to the small number of non-experts on the right who dispute the science on climate change.
Cable news Kenneth Tomlinson, while chairman of the
Corporation for Public Broadcasting, commissioned a $10,000 government study into
Bill Moyers'
PBS program,
NOW. The results of the study indicated that there was no particular bias on PBS. Tomlinson chose to reject the results of the study, subsequently reducing time and funding for
NOW with
Bill Moyers, which Tomlinson regarded as a "left-wing" program, and then expanded a show hosted by Fox News correspondent
Tucker Carlson. Some board members stated that his actions were politically motivated. Himself a frequent target of claims of bias (in this case, conservative bias), Tomlinson resigned from the CPB board on November 4, 2005. Regarding the claims of a left-wing bias, Moyers asserted in a
Broadcasting & Cable interview that "If reporting on what's happening to ordinary people thrown overboard by circumstances beyond their control and betrayed by Washington officials is liberalism, I stand convicted." According to former Fox News producer Charlie Reina, unlike the
AP,
CBS News, or
ABC News, Fox News's editorial policy is set from the top down in the form of a daily memo: "[F]requently, Reina says, it also contains hints, suggestions and directives on how to slant the day's news—invariably, he said in 2003, in a way that was consistent with the politics and desires of the Bush administration." Fox News responded by denouncing Reina as a "disgruntled employee" with "an ax to grind". A similar top-down approach to dictating messaging is used at
Sinclair Broadcast Group, which notably instructed all its local news anchors to run a conservative message in the main news segment. Its rapid growth through station group acquisitions—especially during the lead-up to the 2016 presidential elections—had provided an increasingly large platform promoting conservative views.
Nexstar Media Group, the US's largest owner of local television stations, specifically claimed to counter perceived cable news media bias by starting the
NewsNation channel to replace the struggling general entertainment channel WGN America. Nexstar invested millions of dollars into news programming, and said they hired "
rhetoricians" to monitor language used in their flagship newscast,
NewsNation Prime, for evidence of bias. However, ratings were lower than the entertainment programming it replaced, the channel's interview with President Donald Trump was mocked by other outlets as being especially soft, and later it was disclosed that former Fox News Channel chief and Trump administration deputy chief of staff
Bill Shine was brought on as a consultant. After the disclosure, the news director, managing editor, and vice president of news all resigned within one month, just as NewsNation was expanding its hours of coverage.
Asymmetric polarization In
Network Propaganda,
Yochai Benkler, Robert Faris and Hal Roberts of Harvard's
Berkman Klein Center for Internet & Society use
network analysis to analyze American media and explore why there is "often no overlap, no resemblance whatsoever between the news events reported in mainstream print and broadcast coverage [...] and the topics that get broadcast as news on the Fox network and its fellows on the right". By tracking citations and social media shares across various news outlets and correlating with editorial political leaning, they found that right-wing media sources had effectively segregated themselves into in an increasingly isolated silo, creating a propaganda
feedback loop continually becoming more extreme and more partisan. They note that the right wing media "punish actors – be they media outlets or politicians and pundits – who insist on speaking truths that are inconsistent with partisan frames and narratives dominant within the ecosystem", and contrast this with a "reality check dynamic" that prevails in the mainstream media. A 1998 study from FAIR found that journalists are "mostly centrist in their political orientation"; 30% considered themselves to the left on social issues compared with 9% on the right, while 11% considered themselves to the left on economic issues compared with 19% on the right. The report argued that since journalists considered themselves to be centrists, "perhaps this is why an earlier survey found that they tended to vote for Bill Clinton in large numbers." FAIR uses this study to support the claim that media bias is propagated down from the management and that individual journalists are relatively neutral in their work. In
What Liberal Media? The Truth About Bias and the News (2003),
Fact checking and fake news Conservative outlets like
The Weekly Standard and
Big Government have criticized fact checking of conservative content as a perceived liberal attempt to control discourse. A 2019 study found that fake news sharing was less common than perceived, and that actual consumption of fake news was limited. Another 2019 study found that older, more conservative people were more likely to have shared fake news during the 2016 election season than moderates, younger adults, or "super liberals". An Oxford study has shown that deliberate use of fake news in the U.S. is primarily associated with the hard right. According to a 2019 study of fake news on Twitter during the 2016 election season, 80% of "all content from suspect sources was shared by less than 1 percent of the human tweeters sampled... Those users were disproportionately politically conservative, older and more highly engaged with political news". The term "fake news" has been weaponized with the goal of undermining public trust in news media. as a way of denigrating any story or outlet critical of him, even appearing to claim to have invented the term and handing out so-called "
Fake News Awards" in 2017. uses the term "fake news" to describe any media coverage that casts him in a negative light. In 2018, Trump "described what he called the 'fake news' of the American press as 'The Enemy of the American people, a phrase similar to one used by
Joseph Stalin, as well as other
totalitarian leaders, that also was reminiscent of
Richard Nixon's inclusion of journalists on his "
enemies list". In response, the United States Senate unanimously adopted a resolution which reaffirmed "the vital and indispensable role the free press serves" and was seen as a symbolic rebuke to Trump. ==Presidential elections==