Commenting on the US-China mobile phone rivalry, SMU Associate Professor of Computer Science Zhu Feida noted that the US is currently facing a dilemma on the issue of chip control over China. Its restrictions on China's technology are already very significant, and further tightening may hit its own technology industry. However, with the approaching presidential election and significant domestic political pressure, the Biden administration must also show its stance. Assoc Prof Zhu believes that it may be difficult for the US to further tighten restrictions on China, and the investigation by the Department of Commerce is already a way for the Biden administration to respond to and show its stance on the Huawei issue.