Conversation so far:
How did Helen Zille fight against drug and alcohol abuse?
In March 2008, Helen Zille took her anti-drugs campaign to Johannesburg, leading a protest march.
Did Helen Zille succeed in her campaign against drug and alcohol abuse?
It is not clear that Zille's activities have had any particular impact on problems of crime and substance abuse in the Western Cape.

Question: who else supported her in her campaign?
Self-contained rewrite: Who else supported Helen Zille in her campaign?