Mexican American Youth OrganizationAmong the protest movements of the 1960s, the Mexican American Youth Organization (MAYO) emerged as one of the principal Chicano organizations seeking social change. By the time MAYO evolved into the Raza Unida Party (RUP) in 1972, its influence had spread far beyond its Crystal City, Texas, origins. Its members precipitated some thirty nine school walkouts, demonstrated against the Vietnam War, and confronted church and governmental bodies on