Rep. John Moolenaar, the Michigan Republican who chairs the House Select Committee on China, is pressing the Trump administration to tighten China technology restrictions and avoid concessions at President Donald Trump’s planned summit with Xi Jinping. In a letter to Commerce Department official Jeffrey Kessler, Moolenaar urged stricter enforcement of a Biden-era foundry rule after Sophgo chips were found in Huawei AI products, warning that a TSMC-Sophgo-Huawei supply-chain loophole could recur. He also criticized approval of certain Nvidia exports, including the H200, and proposed the SCALE Act’s rolling threshold limiting U.S.-exported chips to no more than 110% above China’s domestic manufacturing capabilities. In a separate letter to Trump, Moolenaar called for renewed restrictions on China’s access to American AI and U.S. and allied semiconductor-manufacturing technology, consequences over alleged Chinese targeting support for Iranian strikes that killed U.S. service members, continued support for Taiwan and pressure over detained Americans. He said enabling Iran would be "tantamount to an act of war against the United States and will be met with the most severe consequences," while describing China as the United States’ "foremost foreign adversary and greatest external threat."