Susan Davis reports on the magic of state politics.

The wizard lobby is wading into Maine’s fight over gay marriage.

The Harry Potter Alliance, a Massachusetts-based nonprofit that is “dedicated to bringing the themes of Harry Potter into the real world” announced today a grassroots effort to help defeat a Nov. 3 ballot initiative in Maine that seeks to repeal a recent state law legalizing same sex marriage.

Associated Press A potential future member of the Harry Potter Alliance.

The alliance announced an Oct. 24 concert series in Portland featuring Harry and the Potters and Draco and the Malfoys—two indie rock bands that sing songs from the perspective of Harry Potter characters.

The bands and concert attendees will then spend the day canvassing voters to vote against Proposition 1 in conjunction with Maine Equality, a gay rights group. Then, the bands will play a second concert, which will be live-streamed to fans who are also being asked to take part in a phone bank that day.

The lobbying day is being constructed as a House Cup Competition from the books—including the creation of a feature in the phone bank system that allows participants to register and earn points based on which House at Hogwarts they identify with. Headlining the effort is Evanna Lynch, who plays Luna Lovegood in the Harry Potter films.