What was Kilgore's (R) percentage when Potts (I) polled at 1%?
CREATE TABLE "opinion_polls" (
  "source" text,
  "date" text,
  "kaine_d" text,
  "kilgore_r" text,
  "potts_i" text
);
SELECT "kilgore_r" FROM "opinion_polls" WHERE "potts_i"='1%';