With less than a month in office, the president has pursued trade actions that could shatter the global trading system and dwarf the trade measures he took over his entire first term.

US President Donald Trump's use of tariffs as a blunt weapon to extract concessions on everything from commerce to immigration and drug trafficking could

President Donald Trump is taking a blowtorch to the rules that have governed world trade for decades. The “reciprocal’’ tariffs that he announced Thursday are likely to create chaos for global businesses and conflict with America’s allies and adversaries alike.