 Complete the following phrase:  The Harry Potter Alliance HPA consists of more than 100,000 members who support several causes including Doctors for Health, Free Press, and The Gay-Straight Alliance. This movement, which was established in 2005 by its non-profit leader Andrew Slack, parallels Harry Potters endeavors to combat Voldemort to the broader societys goals to challenge domit power structures that oppress marginalized groups. The HPA has been active in its strides toward providing ficial relief toward populations in need. For example, following the 