15% of the delegates at the GOP Convention were black? Where did you hear that?
Sorry, my Bad --- shouldn't have thrown out a number so quickly without cheking. I had remembered the 15 % Number, which apparently was closer to the % increase in Blacks over previous years. Here is what I found along with the reference.
2004 GOP Convention:
"There are 167 African American delegates here, compared with 85 four years ago, according to “Blacks and the 2004 Republican National Convention,” a report just released by the Joint Center for Political and Economic Studies. Black delegates are 6.7 percent of the total, compared to 4.1 percent in 2000 and only 2.6 percent in 1996."
http://www.jointcenter.org/election-2004/083004.html