CREATE TABLE table_76369 ("Poll source" TEXT, "Dates administered" TEXT, "Arlen Specter*" TEXT, "Pat Toomey" TEXT, "Tom Ridge*" TEXT, "Peg Luksik" TEXT)

Which Dates administered has an Arlen Specter* of , and a Peg Luksik of 9%?
SELECT "Dates administered" FROM table_76369 WHERE "Arlen Specter*" = '––' AND "Peg Luksik" = '9%'
SELECT "Dates administered" FROM "table_76369" WHERE "Arlen Specter*" = '––' AND "Peg Luksik" = '9%'