What is the 2008 Candidates Elected before 1994 with Incumbent Jim McDermott?
CREATE TABLE "races_and_results" (
  "district" text,
  "incumbent" text,
  "party" text,
  "elected" real,
  "status" text,
  "2008_candidates" text,
  "results" text
);
SELECT "2008_candidates" FROM "races_and_results" WHERE "elected"<1994 AND "incumbent"='jim mcdermott';