RealClearPolitics has a Center bias.
An AllSides independent review in April 2020 found that RealClearPolitics prominently includes commentary from all sides of the political spectrum, linking to a variety of commentators on sites from the left and right, including The New Yorker, CNN Opinion, The Federalist, The Nation, and the Washington Times.
RealClearPolitics also runs Fact Check Review, a site that fact checks popular fact checker sites.
Some have claimed RealClearPolitics has a right-leaning bent.
RealClearPolitics was founded in 2000 in Chicago by former options trader John McIntyre and former advertising agency account executive Tom Bevan. The site includes political news, op-eds, commentary. It also publishes aggregation of polling data during election seasons.
According to its About page,
"At RealClearPolitics (RCP) we’re dedicated to providing our readers with better, more insightful analysis of the most important news and policy issues of the day. RCP’s daily editorial curation and original reporting present balanced, non-partisan analysis that empowers our readers to stay informed."
According to Wikpedia, in a 2001 article for Princeton Alumni Weekly, McIntyre said, "I'm not really a die-hard Republican because my interests are less on social issues, more on taxing and spending... But I definitely don't want the government telling me what to do with my property... Nevertheless, any political junkie—even a liberal—would enjoy our site because the topics we choose are current."
In a 2003 interview with Human Events magazine, Bevan said, "We think debate on the issues is a very important thing. We post a variety of opinions". He further stated, "we have a frustration all conservatives have", which is "the bias in media against conservatives, religious conservatives, [and] Christian conservatives."