The CEOs of Big Tech firms Amazon, Apple, Facebook, and Google will testify together - at least virtually - in the sixth of a series of hearings in Congress being held by the House Committee on the Judiciary.
The series of hearings have been called, ‘Online Platforms and Market Power’, that have largely focused on ‘Big Tech’ corporations and their powerful position over the Internet and social media. The hearing will specifically be held in the Subcommittee on Antitrust, Commercial, and Administrative Law.

Source: https://www.forbes.com/sites/jasonbrett/2020/07/28/will-blockchain-benefit-as-heads-of-google-facebook-amazon-and-apple-testify-at-antitrust-hearing/