MICHELLE L. PRICE and MARC LEVY.

President Donald Trump is holding a rally in Pennsylvania on Friday to celebrate a details-to-come deal for Japan-based Nippon Steel to invest in U.S. Steel. He says the plan will keep the iconic American steelmaker under U.S. control. Trump initially vowed to block the Japanese steelmaker’s bid to buy Pittsburgh-based U.S. Steel. But he changed course and announced an agreement last week for what he described as “partial ownership” by Nippon. It’s not clear if the deal Trump’s administration helped broker has been finalized or how ownership would be structured.