This bill protects major U.S. technology companies from foreign regulations that the government considers unfair or threatening to American interests. Specifically, it prevents U.S. courts from enforcing judgments against American tech companies when foreign governments penalize them for not following foreign digital market rules. The bill focuses on companies that provide major digital services (like search engines, social media platforms, or app stores), do business with the federal government, and are incorporated in the U.S. The legislation targets regulations like the European Union's Digital Markets Act, which requires tech companies to share data, allow competitors access to their platforms, and make their systems work with competitors' systems. The bill gives the President broad power to take action—including potential trade measures or sanctions—to protect these companies from foreign regulatory penalties. The President can do this if they believe it serves the public interest and affects U.S. consumers, economic security, technology leadership, or foreign relations. Essentially, the bill treats aggressive foreign tech regulations as a national security and economic threat, and gives the federal government tools to shield American tech companies from compliance with those rules.