The White House says China uses subsidies and government programs to undercut U.S. steel. President Biden wants to hike tariffs on the imports and take other new steps to curb imports.

President BIden and Japanese Prime Minister Fumio Kishida Fumio announced efforts to strengthen military ties, as well as collaborations on space exploration and artificial intelligence.

Former President Donald Trump has already said he would block the deal between U.S. Steel and its Japanese rival. Now President Biden is speaking out about it, too.