Leaders of major technology companies are under increasing pressure to testify before Congress as lawmakers sound the alarm about the industry’s data practices and market power.

It’s been a month since Facebook CEO Mark Zuckerberg appeared in a pair of hearings on Capitol Hill to explain his company’s role in the Cambridge Analytica scandal. The executive largely held his own during the hours of questioning — thanks in no small part to lawmakers’ unfamiliarity with internet policy — but his answers didn’t alleviate concerns about privacy and antitrust. 

Now lawmakers are pushing for other major tech CEOs to testify before Congress.​

When Jack Dorsey, Twitter’s chief executive, visited Capitol Hill Thursday, a pair of top Republicans gently urged him to think about testifying, according to their aides.

A spokeswoman for Rep. Greg Walden (R-Ore.), the chairman of the House Energy and Commerce Committee, said that he extended an open invitation to Dorsey to testify before the panel. The spokeswoman said Dorsey “expressed an interest” in the suggestion and that the committee intends to have more discussions with Twitter.