What is the Rich Savage percentage in the poll that had undecideds at 68%?
CREATE TABLE "democratic_primary" (
  "source" text,
  "date" text,
  "jody_wagner" text,
  "pat_edmonson" text,
  "michael_signer" text,
  "rich_savage" text,
  "jon_bowerbank" text,
  "undecided" text
);
SELECT "rich_savage" FROM "democratic_primary" WHERE "undecided"='68%';