The U.S. Senate Judiciary Committee is issuing a subpoena to Twitter CEO Jack Dorsey after his firm blocked the distribution of an article about Democratic Party presidential candidate Joe Biden’s son, Hunter. Republican Senator Josh Hawley said he also wanted Facebook to testify about the incident. Meanwhile, U.S. Federal Communications Commission chair Ajit Pai said his agency has the authority to regulate social media firms. (The Wall Street Journal, Variety)

Talking point: Both tech firms are trying to limit misinformation on their platforms, as is YouTube, which on Thursday banned QAnon and other conspiracy-theory videos that “justify real-world violence.” The fallout from YouTube’s ban has already reached Canada. YouTube took down the popular channel Radio-Québec for violating its guidelines on COVID-19 misinformation and also took down Ontario-based Amazing Polly. YouTube’s move comes on the heels of Facebook’s and Twitter’s decisions to limit the spread of QAnon. Restricting the sharing of the Post article, which both Facebook and Twitter did, falls into murkier territory. Twitter cited a policy against publishing hacked materials, while Facebook highlighted questions about the article’s validity.