New Delhi, Jan. 6 -- President Donald Trump credited recent record highs in US stock markets to his tariff policies, describing them as a key pillar of economic strength and national security. In a post on Truth Social, he urged supporters to "pray" that the United States Supreme Court upholds his authority to maintain the tariffs.

Trump's appeal stems from a legal challenge to his sweeping tariff regime. Lower federal courts have ruled that many of the tariffs exceeded presidential authority under existing law, finding that the statute used by the administration does not explicitly empower a president to impose broad import duties - a power traditionally reserved for Congress under the US Constitution.

In May 2025, a federal court rule...