CREATE TABLE election (Committee VARCHAR2, Party VARCHAR2)
CREATE TABLE party (Party_ID VARCHAR2, Party VARCHAR2)

Return all the committees that have delegates from Democratic party.
SELECT T1.Committee FROM election AS T1 JOIN party AS T2 ON T1.Party = T2.Party_ID WHERE T2.Party = "Democratic"
SELECT "T1"."Committee" FROM "election" "T1" JOIN "party" "T2" ON "Democratic" = "T2"."Party" AND "T1"."Party" = "T2"."Party_ID"