Sen. Marsha Blackburn (R-Tenn.) has requested TikTok appear before the Senate for a hearing over concerns that the China-based video-sharing app has access to U.S. data.

Sen. Marsha Blackburn (R-Tenn.) speaks during a Senate Judiciary Committee business meeting to vote on Supreme Court nominee Judge Ketanji Brown Jackson on Capitol Hill in Washington, on April 4, 2022. (Anna Moneymaker/Getty Images).