In AMG Capital Management, LLC v. Federal Trade Commission, the U.S. Supreme Court ruled that Section 13(b) of the Federal Trade Commission Act neither authorizes the agency to seek, nor the federal courts to award, “equitable monetary relief such as disgorgement or restitution.” AMG shook the foundations of the Federal Trade Commission’s (FTC) law enforcement program, disabling a remedial tool that anchors the Commission’s prosecution of serious fraud and, increasingly, antitrust violations. Until Congress makes repairs—assuming it does—the agency must use weaker, clumsier measures to deprive wrongdoers of ill-gotten gains and deter misconduct. AMG may have an equally significant aftershock in the years to come. Many observers have urged...