CREATE TABLE table_63160 ("Source" CLOB, "Date" CLOB, "Jody Wagner" CLOB, "Pat Edmonson" CLOB, "Michael Signer" CLOB, "Rich Savage" CLOB, "Jon Bowerbank" CLOB, "Undecided" CLOB)

Which polling source gave Michael Signer 5%?
SELECT "Source" FROM table_63160 WHERE "Michael Signer" = '5%'
SELECT "Source" FROM "table_63160" WHERE "Michael Signer" = '5%'