The tshirt was born after Nagin made comments during an interview on MLK Jr. Day. In part he said,
“It's time for us to rebuild a New Orleans, the one that should be a chocolate New Orleans. And I don't care what people are saying in Uptown or wherever they are. This city will be chocolate at the end of the day.”
Chris mentioned that Nagin's thoughts may have stemmed from other comments that had been made about keeping NOLA “white”, given the large evacuation of blacks following the devastation of Katrina. Makes more sense to me now.