.Biden prepping to shut out Nippon Steel investment of USA Steel The Washington PostU.S. Steel mentions it might leave behind Pittsburgh if Nippon package falls through as Biden prepares to obstruct takeover Pittsburgh Post-GazetteBiden Expected to Block USA Steel Takeover The New York TimesExclusive|U.S. Steel Portend Plant Closings if Purchase Breaks Down The Stock market JournalBiden readied to block United States Steel purchase through Nippon Steel CNN.