President Donald Trump travels to Pittsburgh Friday to celebrate a deal he once vowed to oppose - Japanese steelmaker Nippon Steel’s long-announced plans to buy iconic American steelmaker US Steel.

National Economic Council director Kevin Hassett told ABC's "This Week" that President Trump is focused on ensuring the U.S. has a domestic steel industry capable of supplying its needs "China is dumping of steel not just because they love us and they want to give us nice steel,

President Trump’s plan to double tariffs on foreign steel and aluminum could have sweeping effects on projects across Maryland.

Mr. Trump celebrated what he calls a partnership between U.S. Steel and Japan-based Nippon on Friday, sharing details about commitments in the partnership and increased tariffs on imported steel.

President Trump is launching a new trade war, this time targeting steel, raising the tariffs from 25 percent to 50 percent. CNBC Senior Analyst, Ron Insana and James Sample, a law professor at Hofstra University,

Canada’s steel industry warned of “catastrophic” job losses, factory slowdowns and supply chain disruption after US President Donald Trump doubled tariffs on imports to 50 per cent.

President Donald Trump is holding a rally in Pennsylvania on Friday to celebrate a details-to-come deal for Japan-based Nippon Steel to invest in U.S. Steel.

Hours after Elon Musk's farewell ceremony in the Oval Office, a U.S. appeals court denied the Trump administration's request to resume mass firings of federal employees. Meanwhile, President Trump returned to a key battleground state for a rally after declaring new steel tariffs and announcing a deal with Japan's Nippon Steel.