Each Friday, I look at what the presidential contenders are saying about foreign policy. This Week: The demise of arms control agreements and the rise of geopolitical competition are a dangerous mix…

Policymakers are increasingly concerned by the U.S.’s dependence on Taiwanese semiconductors. Is onshoring their production to the U.S.—a goal of the CHIPS and Science Act—a practical path forward? 

The fentanyl epidemic is a major election issue. The U.S. could leverage trade policy with China to crack down on its export.