Abstract: For too long, giant tech companies have thrown around their weight to crush competition, exploit user data and spread disinformation. They may think they're too big to be held accountable, but Lina Khan is proving them wrong. Since Khan published her blockbuster Yale Law Journal article "Amazon's Antitrust Paradox" in 2017--written while she was still a law student, she has been the leading intellectual force in the modern antitrust movement. Her writings and advocacy have pushed scholars, lawyers, activists and public officials to think differently about Big Tech. Khan has also been a critical figure in government, providing advice to countless elected officials, working at the Federal Trade Commission and staffing the House Judiciary Committee's Subcommittee on Antitrust.