Japan's Nippon expected to close acquisition of U.S. Steel at $55 per share, sources say
1. Nippon Steel aims to acquire U.S. Steel at $55 per share. 2. Trump supports the acquisition, citing a $14 billion investment boost. 3. Biden previously blocked the deal over national security concerns. 4. The review by Trump signifies changing political attitudes towards the acquisition. 5. U.S. Steel's headquarters will remain in Pittsburgh following the deal.