SELECT T2.Party FROM election AS T1 JOIN party AS T2 ON T1.Party  =  T2.Party_ID WHERE T1.Committee  =  "Appropriations" INTERSECT SELECT T2.Party FROM election AS T1 JOIN party AS T2 ON T1.Party  =  T2.Party_ID WHERE T1.Committee  =  "Economic Matters"
What are the names of parties that have both delegates on "Appropriations" committee and
SELECT T2.Party FROM election AS T1 JOIN party AS T2 ON T1.Party = T2.Party_ID WHERE T1.Committee = `` Appropriations '' INTERSECT SELECT T2.Party FROM election AS T1 JOIN party AS T2 ON T1.Party = T2.Party_ID WHERE T1.Committee = `` Economic Matters ''
select t2 . party from election as t1 join party as t2 on t1 . party = t2 . party_id where t1 . committee = value intersect select t2 . party from election as t1 join party as t2 on t1 . party = t2 . party_id where t1 . committee = value
What are the names of parties that have both delegates on `` Appropriations '' committee and