CREATE TABLE table_23739 ("County" CLOB, "Obama%" CLOB, "Obama#" FLOAT, "McCain%" CLOB, "McCain#" FLOAT, "Others%" CLOB, "Others#" FLOAT, "Total" FLOAT)

Name the county for mccain being 38.78%
SELECT "County" FROM table_23739 WHERE "McCain%" = '38.78%'
SELECT "County" FROM "table_23739" WHERE "McCain%" = '38.78%'