Technical expertise and supply chains shortages will pose huge challenges for global manufactures hoping to manufacture coronavirus vaccines, despite President Biden's support in waiving patents. Plus, how to convince more Americans to get vaccinated.This episode: political correspondent Juana Summers, White House correspondent Tamara Keith, and pharmaceutical correspondent Sydney Lupkin.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.