A conservative group’s booth at the Minnesota State Fair the was hit with a “glitter bomb” on Sunday by opponents of a proposed same sex marriage ban in the state.

Four people on the SkyGlider ride threw rainbow glitter on Minnesota for Marriage’s booth as they passed over it, shouting “Equality for all.” The group is an umbrella organization that includes the Minnesota Family Council, the Minnesota Catholic Conference and the National Organization for Marriage (NOM).

Minnesota for Marriage has endorsed a constitutional amendment that would define marriage as solely between one man and one woman.

The state legislature passed the amendment in May, giving Minnesotans the chance to ratify or reject the proposed amendment in the 2012 elections.

Sunday’s glitter bomb was organized by activist Nick Espinosa, who previously “glitter bombed” Marcus Bachmann’s clinic and Republican presidential candidate Newt Gingrich. Although Gingrich at first brushed off the incident, he later told the New York Times that the act is “clearly an assault and should be treated as such.”

Watch video, uploaded to YouTube on September 4, 2011, below: