PoliticsNBC Nightly News Full Episode — Oct. 21

The program examines Iowa’s pivotal midterm Senate race, where candidates are vying for a seat that could help decide control of Congress. It also reports on evacuations in Toledo, Ohio, after a chemical leak, and says Pope Leo no longer needs additional cancer treatment after lung surgery, according to the latest health update. The broadcast reviews major political developments and voter concerns ahead of the midterms.