.Biden prepping to obstruct Nippon Steel acquisition of united state Steel The Washington PostU.S. Steel states it could possibly leave Pittsburgh if Nippon offer fails as Biden intends to block out requisition Pittsburgh Post-GazetteBiden Expected to Block United State Steel Takeover The The Big Apple TimesExclusive|United State Steel Portend Plant Closings if Purchase Breaks Down The Stock market JournalBiden prepared to block out United States Steel acquisition through Nippon Steel CNN.