The Republican-controlled Senate Judiciary Committee plans to subpoena Twitter CEO Jack Dorsey after the social media platform blocked a New York Post article about Democratic presidential candidate Joe Biden.
Republican Senator Ted Cruz said the committee will issue the subpoena, compelling Dorsey to speak before it, because Twitter is "abusing their corporate power to silence the press and to cover up allegations of corruption".
The social media giant on Wednesday blocked users from sharing or linking to a New York Post article amid concerns that it could be linked to a disinformation campaign weeks ahead of the presidential election.
The article was based on emails obtained from the laptop of Biden's son Hunter that were provided to Trump ally Rudy Giuliani, according to the New York Post.
The tabloid newspaper's story, published on Wednesday, contained alleged details of Hunter Biden's business dealings with a Ukrainian energy company and said the former vice president had met with an adviser of the company.
Biden has denied all wrongdoing, saying that he did not speak to his son about his business.
Facebook also announced that it would reduce distribution of the article pending a review by a fact-checker.
US Senate Majority Leader Mitch McConnell said on Thursday it was "absolutely reprehensible" that social media platforms had blocked the stories.
"There ought not to be any kind of a speech police in this country," McConnell, speaking in Marion, Kentucky, said.
"I don't think any monopoly... ought to be able to pick and choose who gets to speak."
He said he was sympathetic with the actions of Republican senators moving to subpoena Dorsey in the matter.
Dorsey said on Twitter on Wednesday "our communication around our actions on the @nypost article was not great. And blocking URL sharing via tweet or DM with zero context as to why we're blocking: unacceptable".