>> getting more reaction also from the white house. let's go live to the white house. >> steve, this is a capital that is in mourning. his passing was announced late saturday night. after he battled brain kanser with the same integrity, courage, and strength he demonstrated every day of his life. michelle and i are grieving tonight. beau biden was a friend of ours. a lot of people were hopeful. he was readmited about a week and a half ago.