Ron Klain, the longtime confidant of President Joe Biden, will reportedly leave his position after Biden's State of the Union address. WATCH FULL EPISODES OF WORLD NEWS TONIGHT: https://abc.com/shows/world-news-tonight WATCH WORLD NEWS TONIGHT ON HULU: https://bit.ly/3iQLwPp #worldnewstonight #RonKlain #chiefofstaff #biden