Last Term, the Supreme Court recognized a new major questions doctrine, which requires Congress to provide clear statutory authorization for an agency to regulate on a question of great economic or political significance. This new substantive canon of statutory interpretation will be invoked in court challenges to federal agency actions across the country, and it will no doubt spark considerable scholarly attention. This Essay does not wade into those doctrinal or theoretical debates. Instead, it suggests one way Congress could respond: by enacting a Congressional Review Act for the major questions doctrine. In other words, Congress could establish a fast-track legislative process that bypasses the Senate filibuster and similar slow-down me...