China accused President Donald Trump of causing severe disruption to global supply chains after he doubled the U.S. steel and aluminum tariffs to 50 percent.

On Friday, President Donald Trump announced his support of a $14 billion “investment” by Japan-based Nippon Steel in U.S. Steel, but how that might impact the Metro East, the home of U.S.

U.S. Steel's Edgar Thomson Steel Works in Braddock, Pennsylvania. (Justin Merriman/For The Washington Post) President Donald ...