CREATE TABLE table_23737 ("County" TEXT, "Obama%" TEXT, "Obama#" FLOAT, "McCain%" TEXT, "McCain#" FLOAT, "Others%" TEXT, "Others#" FLOAT, "Total" FLOAT)

Name the most obama number for mccain being 38.86%
SELECT MAX("Obama#") FROM table_23737 WHERE "McCain%" = '38.86%'
SELECT MAX("Obama#") FROM "table_23737" WHERE "McCain%" = '38.86%'