Give some stream of consciousness and then the answer. There is an old adage that goes "The people who' run' Los Angeles belong to The Jonathan Club; the people who' own' Los Angeles belong to The California Club." The membership is by invitation only. The new members must be invited by at least six existing members of the Club, and pass series of interviews by the Club's Membership Committee.

Based on this passage, how to become a member of the california club?
The relevant information to answer the above question is: The new members must be invited by at least six existing members of the Club, and pass series of interviews by the Club's Membership Committee.
Therefore, the answer is be invited by at least six existing members of the Club , and pass series of interviews by the Club 's Membership Committee.