The Globe and Mail reports in its Friday, May 22, edition that when President Donald Trump announced last year that Nvidia could sell a powerful chip to China, it seemed like a win-win in a tense geopolitical climate. A New York Times dispatch to The Globe reports that former Biden and Trump administration officials warned the move could squander the lead that U.S. artificial intelligence companies held over Chinese rivals, by helping China close the gap until its own chipmakers could catch up to Nvidia. But six months on, Beijing has not allowed any of its companies to buy a single one. The impasse highlights the deep mistrust between the United States and China. For years, their companies collaborated on revolutionary products like the iPhone, but over the last decade, both governments have viewed technology as key to economic dominance, leading to a souring relationship. Rather than turn to Nvidia, Chinese officials have pushed domestic companies toward homegrown alternatives from chipmakers such as Huawei and Cambricon. After meeting last week in Beijing with Xi Jinping, Mr. Trump said China's lack of interest in the chip he had approved had been driven in part by this push for industrial self-reliance.