Supporters of District of Columbia mayoral candidate and Council Chairman Vincent Gray react as numbers begin to come in for his race against Mayor Adrian Fenty at Gray's primary party in Washington, on Tuesday, Sept. 14, 2010. (AP Photo/Jacquelyn Martin)

Photo by: Jacquelyn Martin

Supporters of District of Columbia mayoral candidate and Council Chairman Vincent Gray react as numbers begin to come in for his race against Mayor Adrian Fenty at Gray's primary party in Washington, on Tuesday, Sept. 14, 2010. (AP Photo/Jacquelyn Martin)