Facebook released initial findings on Tuesday from an audit it commissioned examing whether the social media giant is biased against conservatives. The report, conducted by a private law firm and issued under the name of former Arizona Republican Sen. Jon Kyl, comes amid substantial pressure and claims from right-leaning groups and lawmakers in Washington that the company has stifled their messages. The allegation of anti-conservative bias in tech has evolved over the past few years into a powerful political weapon and campaign issue for Republicans.