CREATE TABLE "united_states_house_of_representatives_e" (
  "district" text,
  "incumbent" text,
  "party" text,
  "first_elected" real,
  "result" text,
  "candidates" text
);

Question: How many candidates were there in the election for William Jennings Bryan Dorn's seat?
SQL: SELECT COUNT("candidates") FROM "united_states_house_of_representatives_e" WHERE "incumbent"='William Jennings Bryan Dorn';

Question: What is the earliest year that a candidate was first elected?
SQL: SELECT MIN("first_elected") FROM "united_states_house_of_representatives_e";