CREATE TABLE "minnesota" (
  "district" text,
  "incumbent" text,
  "party" text,
  "first_elected" real,
  "results" text
);

Question: What is First Elected, when District is "Minnesota 2"?
SQL: SELECT "first_elected" FROM "minnesota" WHERE "district"='minnesota 2';

Question: What is the lowest First Elected, when Party is "Republican", and when District is "Minnesota 1"?
SQL: SELECT MIN("first_elected") FROM "minnesota" WHERE "party"='republican' AND "district"='minnesota 1';

Question: What is Party, when Results is "Re-Elected", when First Elected is greater than 1990, and when District is "Minnesota 4"?
SQL: SELECT "party" FROM "minnesota" WHERE "results"='re-elected' AND "first_elected">1990 AND "district"='minnesota 4';

Question: What is Incumbent, when Results is "Re-Elected", when Party is "Democratic", and when District is "Minnesota 7"?
SQL: SELECT "incumbent" FROM "minnesota" WHERE "results"='re-elected' AND "party"='democratic' AND "district"='minnesota 7';