The Senate Commerce Committee on Thursday authorized subpoenas for Facebook CEO Mark Zuckerberg, Sundar Pichai of Google, and Twitter's Jack Dorsey.
Sen. Roger Wicker [R-MS], who heads the committee, today said testimony of the three social media CEOs testimony is needed "to reveal the extent of influence that their companies have over American speech during a critical time in our democratic process."
The committee's unanimous vote marked the start of a new bipartisan initiative against Big Tech companies, which have been under increasing scrutiny in Washington and from state attorneys general over issues of competition, consumer privacy and hate speech.
Facebook, meanwhile, is expanding restrictions on political advertising, including new bans on messages claiming widespread voter fraud. The new prohibitions laid out in a blog post come days after President Donald Trump raised the prospect of mass fraud in the vote-by-mail process during a debate with Democratic rival Joe Biden.