President Barack Obama is on his way to Senegal, where he will begin his first major tour of Africa, eventually making his way to South Africa where former President Nelson Mandela has been in critical condition. NBC's Tom Brokaw, who conducted one of the first interviews with Mandela after he was released from prison after 27 years in 1990, joins from Pretoria to talk about memories of Mandela shared to him by his friends as well as the Supreme Court's historic rulings on gay marriage.June 26, 2013
