WSKG (https://wskg.org/npr_story_post/joe-biden-officially-announces-2020-presidential-run/on-oct-21-2015-then-vice-president-joe-biden-appeared-alongside-his-wife-jill-and-president-obama-to-announce-that-he-would-not-run-for-president-2016-in-the-aftermath-of-his-son-beaus-death-from/)