Leaders from the U.S. House Committee on Energy and Commerce want Facebook CEO Mark Zuckerberg to testify before the committee.
In a sent letter to Zuckerberg on Friday, committee members said as CEO, he's the person who needs to testify before Congress.
The letter referenced the allegations that data consultancy firm Cambridge Analytica gained access to about 50 million Facebook users' data and exploited it for the 2016 presidential campaign.
Facebook didn't immediately respond to CNET's request for comment.
"We appreciate Facebook's willingness to provide a briefing for staff earlier in this week," the letter said, "However, at that briefing many questions were left unanswered."
A hearing, which will take place in the "near future," will explore Facebook's policies surrounding its platform, as well as its policies regarding the use and access of user data.