Despite the bleak outlook, Nippon Steel and US Steel had been pushing forward with the deal for months with concessions and incentives for workers.

U.S. Steel and Japan’s Nippon Steel sued the United States government on Monday in a last-ditch attempt to revive their attempted merger after President Biden blocked it last week on the basis that the transaction posed a threat to national security.

Nippon Steel and U.S. Steel filed a federal lawsuit Monday challenging a Biden administration decision to block Nippon's proposed $15 billion acquisition of the Pittsburgh company and said that the head of the Steelworkers union and a rival steelmaker worked together to scuttle the buyout.

U.S. Steel and Japanese steelmaker Nippon Steel sued the U.S. government Monday in a last-ditch effort to move forward with their merger, which President Biden blocked Friday over national

The president said he was moving to protect national security in deciding the fate of the iconic Pennsylvania-based company, which became a contentious political issue in an election year.

GARY, Ind. - Nippon Steel Corp. of Japan and U.S. Steel announced plans to pursue legal action after President Joe Biden blocked their nearly $15 billion acquisition agreement. The president followed through on a vow he made in March to prevent Nippon Steel’s purchase of U.S. Steel, one of the nation’s largest steel producers.

Shares of U.S. Steel sank Friday as President Joe Biden blocked the $14.1 billion sale of the iconic American company to Japan's Nippon Steel.

By blocking a Japanese company’s takeover of U.S. Steel, President Joe Biden says he is protecting good jobs in the American heartland