CREATE TABLE party (party_id NUMBER, year NUMBER, party CLOB, governor CLOB, lieutenant_governor CLOB, comptroller CLOB, attorney_general CLOB, us_senate CLOB)
CREATE TABLE county (county_id NUMBER, county_name CLOB, population NUMBER, zip_code CLOB)
CREATE TABLE election (election_id NUMBER, counties_represented CLOB, district NUMBER, delegate CLOB, party NUMBER, first_elected NUMBER, committee CLOB)

Show the names of counties that have at least two delegates.
SELECT T1.county_name FROM county AS T1 JOIN election AS T2 ON T1.county_id = T2.district GROUP BY T1.county_id HAVING COUNT(*) >= 2
SELECT "T1"."county_name" FROM "county" "T1" JOIN "election" "T2" ON "T1"."county_id" = "T2"."district" GROUP BY "T1"."county_id" HAVING COUNT(*) >= 2