U.S. goes to WTO to challenge Russian response to Trump's steel tariffs

GENEVA (Reuters) - The United States launched a complaint against Russia at the World Trade Organization on Wednesday, challenging a "special protective measure" imposed on U.S. imports in response to U.S. President Donald Trump's tariffs on steel and aluminium.The United States said Russia was breaking WTO rules because its additional duties applied only to U.S. imports, and not to goods from any other country, and because the rates of duty were higher than the maximum allowed under its WTO..