Twitter’s chief, Jack Dorsey, is likely to face particular ire.
Of all the social media platforms, Twitter has lately been especially aggressive in disputing inaccurate election-related posts and hiding messages. That means Jack Dorsey, Twitter’s chief executive, may face particular fire while testifying in front of the Senate Judiciary Committee on Tuesday about social media and censorship.
President Trump and other Republican leaders have claimed for months — and increasingly vocally in recent days — that Mr. Dorsey has unfairly cracked down on them. They have threatened to roll back legal protections for Twitter and other social media platforms.
They are likely train their ire on two recent developments. One was Twitter’s decision last month to restrict users from sharing an unsubstantiated New York Post article about Joseph R. Biden Jr.’s son Hunter. Twitter limited the sharing of the article more than Facebook did, drawing cries of censorship from Republicans.
The other focus is likely to be Twitter’s handling of election-related content and, in particular, how the company has appeared to tightly moderate Mr. Trump and other conservatives. Between Election Day and Nov. 5, Twitter labeled 38 percent of Mr. Trump’s 29 tweets and retweets as disputed or misleading, according to a New York Times tally. Some of the tweets were hidden from view.