The U.S. Senate has passed bipartisan legislation that will require advanced AI chipmakers like NVIDIA and AMD to prioritize U.S. companies for access to their products before exporting to countries like China. This move is seen as a setback for the industry's efforts to block the measure. NVIDIA has previously stated that while the legislation is well-intentioned, it addresses a nonexistent problem as the U.S. is its largest market. In a related development, China has intensified its enforcement of import restrictions on U.S. chips, including NVIDIA's AI processors. Chinese customs officials are reportedly conducting strict checks on semiconductor shipments at key ports, initially targeting NVIDIA's H20 and RTX Pro 6000D chips, which were designed to comply with U.S. export controls.