FILE - This April 26, 2010, file photo shows the United States Steel logo outside the headquarters building in downtown Pittsburgh. President-elect Donald Trump is underscoring his intention to block the purchase of U.S. Steel by Japanese steelmaker Nippon Steel Corp., and he’s pledging to use tax incentives and tariffs to strengthen the iconic American steelmaker. Trump said during the campaign that he would “instantaneously” block the deal, and he reiterated that sentiment in a Monday night statement.(AP Photo/Gene J. Puskar, File)