CREATE TABLE table_43240 ("Date" CLOB, "Source" CLOB, "Polling Agency" CLOB, "Davis" CLOB, "Gallagher" CLOB, "Higgins" CLOB, "McGuinness" CLOB, "Mitchell" CLOB, "Norris" CLOB, "Scallon" CLOB)

What is the Source with a Norris that is 7%?
SELECT "Source" FROM table_43240 WHERE "Norris" = '7%'
SELECT "Source" FROM "table_43240" WHERE "Norris" = '7%'