The Municipal Brotherhood of Police, a voluntary private association whose members are limited to current and retired "peace officers," sponsors a dance at its hall for seniors at Public High School each spring and refuses admission to students whom it considers to be gay or lesbian. The term "peace officer" is defined by state law to include law enforcement officers and private security guards. The revenue of the Brotherhood is derived from membership dues and profits from a concession granted the Brotherhood by the municipality at the annual municipal fair. Is the Brotherhood's refusal to admit gay or lesbian students to its dance, otherwise open to all high school seniors, state action?