NPR News Now covers U.S.-sponsored peace talks between Russia and Ukraine in Abu Dhabi, alongside Defense Secretary Pete Hegseth's response to new impeachment articles. The broadcast also details the ongoing count of outstanding ballots in the Mississippi Senate race, where Democrat Scott Watters leads incumbent Cindy Hyde-Smith. Additionally, the episode reports on House committee inquiries into NVIDIA CEO Jensen Huang and new research on the health benefits of reducing global air pollution.