BUENOS AIRES, Argentina (AP) — Heads of state from the world's leading economies were invited to the Group of 20 summit to discuss development, infrastructure and investment. As the gathering officially kicks off Friday, those themes seem like afterthoughts, overshadowed by contentious matters from the U.S.-China trade dispute to the conflict over Ukraine.
Also expected to loom large are tensions between longtime allies the United States and Europe, the gruesome slaying of a dissident Saudi journalist and how the Saudi crown prince who is alleged to have ordered the killing is received by world leaders.
The U.S., Canada and Mexico also are supposed to sign a trade deal replacing the North American Free Trade Agreement that was struck following months of tough negotiations that analysts say left a bitter taste among the partners.