U.S. lawmakers have tried four times since September last year to close what they called a glaring loophole: China is getting around export bans on the sale of powerful American AI chips by renting them through U.S. cloud services instead. But the proposals prompted a flurry of activity from more than 100 lobbyists from tech companies and their trade associations trying to weigh in, according to disclosure reports. The result: All four times, the proposal failed, including just last month. As leaders U.S. Donald Trump and Xi Jinping prepare for a long-heralded meeting Thursday, the sale of U.S. technology to...						
						 
								