NEW YORK (AP) — Facebook CEO Mark Zuckerberg is meeting with conservatives, including radio host Glenn Beck, to discuss claims that its "trending topics" feature is biased against their viewpoints.

The Wednesday meeting also includes American Enterprise Institute president Arthur Brooks, Tea Party Patriots CEO Jenny Beth Martin and also Brent Bozell, president of the Media Research Center, which says its "sole mission is to expose and neutralize the propaganda arm of the Left: the national news media."

Zuckerberg invited the dozen or so conservatives after a report in the tech blog Gizmodo claimed that Facebook downplays conservative news subjects on its trending feature. Facebook denies that report, which relied upon a single anonymous individual with self-described conservative leanings.

Nonetheless, Zuckerberg said the Menlo Park, California, company is investigating the matter.