.Biden prepping to shut out Nippon Steel investment of USA Steel The Washington PostU.S. Steel mentions it could possibly leave Pittsburgh if Nippon package falls through as Biden organizes to shut out takeover Pittsburgh Post-GazetteBiden Expected to Block United State Steel Takeover The The Big Apple TimesExclusive|U.S. Steel Warns of Plant Closings if Sale Breaks Down The Stock market JournalBiden prepped to block US Steel purchase by Nippon Steel CNN.