Optimism is rising that President Trump and Chinese President Xi Jinping might be able to de-escalate recent tensions when they meet in South Korea on Thursday.
The positive sentiment lifted U.S. financial markets on Monday and sparked confident vibes from Trump himself, who said about the forthcoming meeting, “I really feel good."
The problem, of course, is that any unexpected snag or contretemps would confound those hopes and have a correspondingly negative effe...