What is unclear is why he waited so long (he also didn't notify the NAACP's 64-member board of the letter) and why, according to my NAACP sources, he wrote the letter with help from Mary Frances Berry, former head of the U.S. Commission on Civil Rights, as well as Wade Henderson, CEO of the Leadership Conference on Civil Rights.
CNN: Commentary: NAACP's Bond late to the game on Dem delegate battle