On June 22, 2020, the US Supreme Court issued an order denying a Petition for Certiorari (review) filed by the American Institute for International Steel (AIIS) challenging the Administration’s authority to assess tariffs under section 232 of the Trade Expansion Act of 1962. The AIIS had unsuccessfully argued in lower courts that Sec. 232 improperly delegated to the Executive branch the power to assess tariffs, reserved to Congress under the Constitution. The Supreme Court order ends two years of litigation. Although no reason for denying the petition was given by the Supreme Court, the Government had successfully argued in lower courts that an earlier Supreme Court decision, Federal Energy Administration v. Algonquin, 426 U.S. 548 (1976), had already upheld the use of Sec. 232 by the Executive branch.