Presidents Donald Trump and Xi Jinping have wrapped up their critical talks. They're claiming important progress in stabilizing U.S.-China relations even as deep differences persist between the world’s two biggest powers on Iran, Taiwan and more. Xi welcomed Trump at his official residence, Zhongnanhai, on Friday for the final talks of the summit before the U.S leader’s return to Washington. Over tea and lunch, Trump and Xi — with top aides and translators in tow — huddled for three hours of talks as the U.S. leader completed his three-day visit to China. Trump claimed, “It’s been really a great couple of days." Xi, for his part, described it as a “milestone” visit.