2020 candidate Bill de Blasio says Joe Biden should apologize and recognize "he caused a lot of pain" with his comments on working with segregationists.

2020 candidate Bill de Blasio says Joe Biden should apologize and recognize "he caused a lot of pain" with his comments on working with segregationists. https://t.co/yHcQDnCV0x

— MSNBC (@MSNBC) June 21, 2019