SELECT Party FROM representative GROUP BY Party HAVING COUNT(*)  >=  3
What parties have at least three representatives?
CREATE TABLE "election" (
"Election_ID" int,
"Representative_ID" int,
"Date" text,
"Votes" real,
"Vote_Percent" real,
"Seats" real,
"Place" real,
PRIMARY KEY ("Election_ID"),
FOREIGN KEY ("Representative_ID") REFERENCES `representative`("Representative_ID")
);
CREATE TABLE "representative" (
"Representative_ID" int,
"Name" text,
"State" text,
"Party" text,
"Lifespan" text,
PRIMARY KEY ("Representative_ID")
);
INSERT INTO  "representative" VALUES (1,"Dan Quayle","Indiana","Republican","1947–");
INSERT INTO  "election" VALUES (1,1,"July 1942","9423","16.2","6","3");