https://www.reuters.com/article/us-usa-congress-socialmedia/facebook-twitter-alphabet-to-testify-at-u-s-house-hearing-idUSKBN1K32QT

The U.S. House Judiciary Committee on Tuesday will hold a hearing to take testimony from Facebook Inc, Alphabet Inc's YouTube unit and Twitter Inc on whether social media companies are filtering content for political reasons, the committee chairman said.