Lahore, June 20 -- President Xi Jinping had a phone conversation with United States President Donald Trump on Tuesday. Trump said he looks forward to meeting with Xi on the sidelines of the upcoming G20 Leaders' Summit in Osaka, Japan, to discuss indepth bilateral ties and issues of common concern, Xinhua News Agency reported. Washington values ChinaUS economic and trade cooperation, and it hopes that the working teams of the two sides will communicate and find solutions to their existing differences at an early date, Trump said, adding that he believes the world would like to see an agreement reached between the US and China. Xi said that China-US ties have encountered some difficulties recently, which are not in the interests of either si...