President Donald Trump is holding off on new tariffs targeting imports of critical minerals, following a months-long review to determine whether foreign shipments threatened US national security.

Mr. Trump and his supporters have taken the opposite view, arguing that the strong economy is evidence the president’s economic plan is working perfectly. The president has been able to usher in the highest tariffs in a century with minimal inflation and a booming economy, they say.

California, the nation’s top import hub, faces economic fallout as the Supreme Court nears a ruling on Trump’s tariffs and presidential trade powers.

The US Supreme Court on Wednesday issued no ruling on the legality of tariffs imposed by President Donald Trump last year.