In an hour-long briefing, Biden downplayed the role his election victory and messaging are playing in encouraging an influx of migrants to the border. He also said that he was working quickly to improve the conditions for children detained by the United States.This episode: White House correspondent Tamara Keith, White House reporter Ayesha Rascoe, and national political correspondent Mara Liasson.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.