CREATE TABLE table_28864 ("District" TEXT, "Incumbent" TEXT, "Party" TEXT, "First elected" TEXT, "Result" TEXT, "Candidates" TEXT)

how many 'Party' are in district south carolina 2?
SELECT COUNT("Party") FROM table_28864 WHERE "District" = 'South Carolina 2'
SELECT COUNT("Party") FROM "table_28864" WHERE "District" = 'South Carolina 2'