Japan's ruling Liberal Democratic Party tax chief labeled US tariffs 'a real mess' after President Trump escalated levies in response to a Supreme Court ruling invalidating previous tariffs. This criticism highlights growing friction between the world's second- and third-largest economies. The LDP official's remarks signal domestic political pressure on Tokyo to push back against Washington's trade policies. Trump's tariff hike directly followed a Supreme Court decision declaring his prior tariffs illegal, creating a cycle of retaliatory measures that could disrupt global supply chains and investment flows. The LDP's public criticism suggests Japan's government may seek new diplomatic avenues to mitigate trade risks, potentially affecting bilateral deals and market confidence.