We have written extensively about the president's decision, the political dynamics at play and possible scenarios for the future. Now that Nippon Steel has taken the unprecedented step of suing the government of Japan's most important ally, the saga appears to be far from over, and there will be a lot more to write about.

Nippon Steel said it wouldn't be deterred by Biden’s decision last week to block its $15 billion bid for the storied U.S. steelmaker.

TOKYO -- Nippon Steel's plan to buy U.S. Steel has entered a new phase with the companies' declaration of a full-scale legal war against the U.S. government. They hope the lawsuits will overturn President Joe Biden's order to give up the acquisition.

Nippon Steel shares closed down 0.75% at 3,158 yen ($20.03) on Monday, compared with a 1% fall in broader Topix index. They settled at 3,182 yen on Dec. 30, the final trading day of 2024 on the Tokyo Stock Exchange, which was closed for the remainder of last week for the New Year holiday.

Japanese companies needing to grow have sought out American deals. Experts say that will not change even after Biden’s rejection of Nippon Steel’s takeover attempt.

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.

By David Shepardson, Tim Kelly, Andrea Shalal WASHINGTON/TOKYO (Reuters) -U.S. President Joe Biden blocked Nippon Steel's proposed $14.9 billion purchase of U.S. Steel on Friday, citing national security concerns,

The usually reticent ally is making it clear that it will not go quietly in its fight to overturn President Biden’s decision to block Nippon Steel’s $14.1 billion takeover bid of U.S. Steel, with Prime Minister Shigeru Ishiba warning this week that the rejection could have real consequences for the bilateral relationship,

Let’s have faith that Trump will reject the Biden administration’s politically motivated interference in the deal or get an even bigger, more spectacular one.

Logical, but not perfect. The Wall Street Journal pointed out that a Cliffs-U.S. Steel combination "would control 100% of U.S. blast furnace production, 100% of domestic steel used in electric-vehicle motors, and 65% to 90% of other domestic steel used in vehicles."

When, on Friday, the Supreme Court hears the Biden administration defend the law that bans TikTok, the justices should remember what the administration said the previous Friday: “National security” justifies the president’s blocking the sale of U.