President Donald Trump announced a partnership between U.S. Steel and Japanese steelmaker Nippon that he says will keep the headquarters in Pittsburgh and draw $14 billion in investment toward the US economy.

President Trump endorsed a plan that would link the U.S. and Japanese steel makers that had been blocked on national security grounds.

"I am proud to announce that, after much consideration and negotiation, US Steel will REMAIN in America," President Trump wrote Friday afternoon.