SQL query: Documentation

SELECT se.election_id, su.user_id
FROM samosa_elections se, samosa_assoc_users_elections saue, samosa_users su
WHERE se.election_id = saue.election_id
AND saue.user_id = su.user_id
LEFT JOIN (

SELECT se.election_id, su.user_id
FROM se, samosa_assoc_groups_elections sage, samosa_groups sg, samosa_assoc_groups_users sagu, su
WHERE se.election_id = sage.election_id
AND sage.group_id = sg.group_id
AND sg.group_id = sagu.group_id
AND sagu.user_id = su.user_id
)table1
USING ( user_id )
LIMIT 0 , 30;

MySQL said: Documentation
#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'LEFT JOIN ( SELECT se . election_id , su . user_id  FROM se , samosa_assoc_group' at line 1