.Biden readying to block out Nippon Steel acquisition of USA Steel The Washington PostU.S. Steel states it can leave behind Pittsburgh if Nippon deal falls through as Biden prepares to block takeover Pittsburgh Post-GazetteBiden Expected to Block USA Steel Requisition The The Big Apple TimesExclusive|USA Steel Warns of Plant Closings if Sale Collapses The Exchange JournalBiden prepped to shut out US Steel purchase by Nippon Steel CNN.