Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE party ( party_name VARCHAR, party_id VARCHAR )
TABLE: CREATE TABLE Member ( party_id VARCHAR )

### Question ###
Show all party names and the number of members in each party.

### Accurate SQL ###

SELECT T2.party_name, COUNT(*) FROM Member AS T1 JOIN party AS T2 ON T1.party_id = T2.party_id GROUP BY T1.party_id