Coronavirus cases are on the rise in parts of the United States and there have been new cases among fully-vaccinated lawmakers and government staff. The country as a whole saw a nearly 150% increase in the seven-day case average compared with two weeks prior.The vaccines, though, are still preventing serious infections and mostly keeping people out of the hospital. Now, President Biden and the White House are struggling to figure out how to get the remaining one-third of American adults vaccinated and stop a pandemic backslide.This episode: political correspondent Juana Summers, White House correspondent Tamara Keith, and science correspondent Rob Stein.Connect:Subscribe to the NPR Politics Podcast here.Email the show at nprpolitics@npr.orgJoin the NPR Politics Podcast Facebook Group.Listen to our playlist The NPR Politics Daily Workout.Subscribe to the NPR Politics Newsletter.Find and support your local public radio station.