What is the name of party with most number of members?
SELECT T2.party_name FROM Member AS T1 JOIN party AS T2 ON T1.party_id  =  T2.party_id GROUP BY T1.party_id ORDER BY count(*) DESC LIMIT 1
SELECT T2.party_name FROM Member AS T1 JOIN party AS T2 ON T1.party_id  =  T2.party_id GROUP BY T1.party_id ORDER BY count(*) DESC LIMIT 1
[{'Party_name': '3'}]