FILE - In this July 17, 1948 file photo, South Carolina Gov. Strom Thurmond reacts to applause from Dixiecrat's State's Rights Convention delegates in Birmingham, Ala. after being nominated by the Dixiecrats for the presidency of the United States. At left is Walter Sillers, convention chairman, using a gavel to call for order. Since the late Sen. Strom Thurmond ran for president in 1948 as a States' Rights Democrat, or "Dixiecrat," the phrase has sometimes been labeled a "dog whistle" for racist elements in the electorate. (AP Photo/file)