FTC Chair Andrew Ferguson has called on Tim Cook to review possible political bias in Apple News’ practices after allegations that the platform is censoring conservative news outlets.

“Recently, there have been reports that Apple News has systematically promoted news articles from left-wing news outlets and suppressed news articles from more conservative publications,” Ferguson wrote in the letter posted to X on Wednesday.

Apple declined to comment on the letter.

The company can legally promote any content it wants to on Apple News, which Ferguson acknowledged.

“We do not have the authority to require Apple or any other firm to take affirmative positions on any political issue, nor to curate news offerings consistent with one ideology or another,” he wrote.

Ferguson’s letter cited a study from the Media Research Center, a conservative watchdog group, that looked at featured stories on Apple News during morning time slots in January.

According to the study, outlets considered right-leaning by AllSides media bias ratings were not featured in a 620-story sample.

President Donald Trump shared a New York Post write-up of the study on his Truth Social account early Wednesday.

According to Section 5 of the FTC Act, the news aggregator could be violating terms if its suppression or promotion “is contrary to consumers’ reasonable expectations such that failure to disclose the ideological favoritism is a material omission.”

Ferguson told Cook to undergo a “comprehensive review” and take corrective action if the Apple News curation is not consistent with the company’s terms of service.