Amazon is joining Microsoft in supporting proposed U.S. legislation aimed at further restricting Nvidia's ability to export advanced AI chips to China, according to a Wall Street Journal report. Officials from Amazon's cloud computing unit have privately expressed their support for the GAIN AI Act to Senate staffers. This legislation would mandate that AI chipmakers prioritize domestic U.S. orders before fulfilling those for foreign customers. The move aligns Amazon Web Services with other major tech players and U.S. government efforts to ensure American companies have primary access to cutting-edge AI technology amid growing geopolitical tensions. The support from major Nvidia customers like Amazon and Microsoft adds significant weight to the legislative push, which could reshape the competitive landscape for AI development and the global semiconductor supply chain. No significant market reaction was noted in the initial reports.