GENEVA (AP) — The head of the World Trade Organization says he understands that President Donald Trump wants to create U.S. jobs, but warns that getting tough on trade can trigger a "domino effect" that could derail such goals in the first place. Speaking to The Associated Press, Roberto Azevedo waded delicately into the possible impact of a simmering U.S.-China dispute involving tit-for-tat tariffs that could escalate into a trade war with consequences for the global economy. Asked if he could understand Trump supporters who want to see U.S. manufacturing jobs return home, Azevedo said that "every country, every leader" wants to create jobs, improve work conditions and improve salaries.