CREATE TABLE table_64419 ("School" TEXT, "Location" TEXT, "Mascot" TEXT, "Size" FLOAT, "IHSAA Class" TEXT, "IHSAA Football Class" TEXT, "County" TEXT)

Which IHSAA class has a mascot of the Raiders?
SELECT "IHSAA Class" FROM table_64419 WHERE "Mascot" = 'raiders'
SELECT "IHSAA Class" FROM "table_64419" WHERE "Mascot" = 'raiders'