Republican presidential candidate Herman Cain is trying to win over a party that hasn't had a black nominee. (Associated Press)
**FILE** Republican presidential hopeful Herman Cain (Associated Press)
** FILE ** Businessman Herman Cain waves as he takes the stage before the first New Hampshire Republican presidential debate at St. Anselm College in Manchester, N.H., Monday, June 13, 2011. (AP Photo/Stephan Savoia)
From left, former Sen. Rick Santorum of Pennsylvania; Rep. Michele Bachmann of Minnesota; former House Speaker Newt Gingrich of Georgia; former Massachusetts Gov. Mitt Romney; Rep. Ron Paul of Texas; former Minnesota Gov. Tim Pawlenty; and businessman Herman Cain greet the audience before first New Hampshire Republican presidential debate, at St. Anselm College in Manchester, N.H., Monday. (Associated Press)
** FILE ** Atlanta businessman Herman Cain speaks at the Georgia Republican Party convention in Macon, Ga., on Saturday, May 14, 2011. (AP Photo/The Macon Telegraph, Grant Blankenship)
Former Godfather's Pizza CEO Herman Cain will announce his presidential aspirations at high noon Saturday. ASSOCIATED PRESS
Former Godfather's Pizza Chief Executive Herman Cain is among those cultivating the GOP grass roots in Iowa this week. (Herman Cain Presidential Exploratory Committee)
Former Godfather's Pizza executive Herman Cain is among those cultivating the GOP grass roots in Iowa. (Herman Cain Presidential Exploratory Committee)
A critic has labeled presidential hopeful Herman Cain a "black conservative mascot" following his speech before CPAC 2011. (Photo from Herman Cain Presidential Exploratory Committee)
