.Biden preparing to obstruct Nippon Steel investment of USA Steel The Washington PostU.S. Steel states it could leave behind Pittsburgh if Nippon package flops as Biden intends to block out requisition Pittsburgh Post-GazetteBiden Expected to Block U.S. Steel Requisition The The Big Apple TimesExclusive|U.S. Steel Portend Plant Closings if Sale Collapses The Stock market JournalBiden prepped to shut out United States Steel investment through Nippon Steel CNN.