Chinese President Xi Jinping viewed the Thucydides Trap as the “best diagnosis” of the challenge Beijing faces with Washington when he raised the concept with US leader Donald Trump this month, signalling an awareness that their current path risked conflict, an eminent American political scientist said. “My impression is that he sees this as the best diagnosis of the challenge he and President Trump face,” said Graham Allison, the founding dean of Harvard University’s John F. Kennedy School of...