The US Supreme Court is poised to deliberate on the legality of former President Donald Trump’s expansive use of emergency economic powers to impose global tariffs. This landmark case, set for arguments on Wednesday, challenges the foundation of Trump’s ‘America First’ trade policy, which aimed to protect and bolster US industries through reciprocal tariffs on countries deemed to engage in unfair trade practices. These tariffs, targeting major trading partners like Mexico, Canada, and China, have faced significant legal scrutiny since their implementation. In May, a lower court ruled that Trump exceeded his authority, a decision upheld by the US Court of Appeals for the Federal Circuit in August. The Supreme Court’s conservative majority now faces a pivotal decision: to either block the tariffs entirely or affirm Trump’s actions, potentially paving the way for further levies. The outcome could impact billions in customs revenue and influence future trade negotiations. While the ruling won’t affect sector-specific tariffs on steel, aluminum, and automobiles, it could set a precedent for executive authority in trade policy. Small businesses, already burdened by the tariffs, warn of existential threats, with owners like Victor Schwartz of VOS Selections and Mike Gracie, a wallpaper importer, highlighting the financial strain. Experts suggest the court might impose limitations or allow tariffs under specific conditions, but the broader implications for executive power and market stability remain a concern.