This NPR News Now episode covers escalating U.S.-Canada trade tensions with reciprocal $20 billion tariffs and a Trump administration crackdown on asylum visas. It reports on a South Carolina Senate special primary, the Hawk fire forcing evacuations near Reno, and rising U.S. stock markets. Additionally, the broadcast details a Penn State cocaine bust, noting alcohol remains a greater campus risk, and confirms the first U.S. measles deaths of the year in unvaccinated Pennsylvania patients.