Republican Congressman John Moolenaar, who leads the House Select Committee on China, called on the Trump administration to ensure chip manufacturers do not send advanced logic chips to untrusted Chinese firms. In January 2025, the Biden administration unveiled a rule requiring chip manufacturers to scrutinize orders of advanced chips from companies that could be serving as a front for untrusted firms from China and other countries. The rule was a response to revelations that Chinese chip designer Sophgo had chips manufactured at TSMC that were later discovered inside AI processors marketed by Huawei, which has been heavily sanctioned by the United States. After President Donald Trump took office, his administration announced it did not plan to enforce another Biden-era chip regulation referenced in the manufacturer rule, fueling uncertainty about enforcement. In a letter dated Thursday, Moolenaar described the measure as “a critical step in preventing [China] from accessing high-end U.S. chips and preserving America’s technological edge,” urging the Commerce Department to enforce it. He wrote that the rule was created “to close the loophole that Huawei and Sophgo exploited,” and warned that if chip factories like TSMC determine their chips are not subject to the rules, “it would dramatically increase the risk of another SophGo-like export control failure.” Commerce, Huawei, Sophgo and TSMC did not respond to requests for comment. The letter signals increasing congressional concern, even among Republicans, about the administration’s more lenient approach to advanced chips reaching Chinese shores.