CREATE TABLE table_203_43 (id NUMBER, "polling firm" CLOB, "month" CLOB, "link" CLOB, "favor" NUMBER, "oppose" NUMBER)

which polling firm was the only poll done in 2008 ?
SELECT "polling firm" FROM table_203_43 WHERE "month" = 2008
SELECT "polling firm" FROM "table_203_43" WHERE "month" = 2008