Brendan Carr, the chair of the Federal Communications Commission, has ordered an investigation into the diversity, equity and inclusion programs at Comcast, the parent company of NBC News and Universal Studios.

In a letter sent to Brian Roberts, Comcast’s chair, on Tuesday, Carr said the FCC would look into DEI practices broadly at many companies it regulated, starting with Comcast.

“I want to ensure that your companies are not promoting invidious forms of discrimination in violation of FCC regulations and civil rights laws,” Carr said in his letter.

Comcast confirmed it had received Carr’s letter.

“We have received an inquiry from the Federal Communications Commission and will be cooperating with the FCC to answer their questions,” Jennifer Khoury, a spokesperson for Comcast, said in a statement. “For decades, our company has been built on a foundation of integrity and respect for all of our employees and customers.”

Greg Watson, a spokesperson for Carr, did not respond to a request for comment.

The investigation into Comcast is the latest in a series of moves by Carr to bring media companies under regulatory scrutiny. Appointed chair of the FCC by President Donald Trump, Carr has ordered investigations into PBS and NPR, examined an interview that “60 Minutes” conducted with former Vice President Kamala Harris and announced an inquiry into San Francisco radio station KCBS for its coverage of immigration enforcement actions.

While Carr has ordered investigations into several media entities, the inquiry into Comcast is the first focused solely on DEI. His investigation into PBS and NPR focused on corporate sponsorships of news programming, and his inquiry at CBS News is focused on a “news distortion” complaint. Carr said in his letter that he was starting his DEI push with Comcast because the company covered “a range of sectors regulated by the FCC,” including cable and high-speed internet.

Tom Wheeler, a former chair of the FCC, said in an interview that the recent investigations by the agency fit into a pattern of using the commission’s power to further Trump’s political agenda.

“It’s clear that what is going on here is — whether it be Comcast and DEI or NPR and PBS, or CBS and the ‘60 Minutes’ interview — is how can you use the coercive authority of regulation to accomplish the goals of your master and mentor, Donald Trump?” Wheeler said.

Anna Gomez, a Democratic commissioner on the FCC, said in a statement in response to Carr’s investigation into Comcast that the commission should not stoke “partisan culture wars.”

“It is time we return to our core mission — closing the digital divide, fostering innovation and protecting consumers,” Gomez said.