Sen. Coons on how Biden can unite America in time of crisis

Delaware Senator Chris Coons has known former Vice President Joe Biden and his family for three decades and is one of Biden’s closest allies in Washington, D.C. In fact, Coons will be helping to introduce Biden when he accepts the Democratic Party’s presidential nomination on Thursday night. Coons joins Judy Woodruff to discuss why he believes Biden can unite America through its current crises.