This NPR News Now episode covers the expiration of U.S.-Iran peace talks and heightened tensions over the Strait of Hormuz. It details the expansion of the 287G program, which empowers local police to enforce federal immigration laws, and a temporary pause on border construction in Big Bend National Park. Additional stories include the indefinite postponement of Luigi Mangione’s murder trial, record-high kindergarten vaccination exemptions, and a British PM’s encounter with an AI imposter posing as a Trump aide.