On June 10, 1964, Rusack was elected Suffragan Bishop of Los Angeles. In 1969 he was elected Bishop of Dallas; however, he declined. He was elected Coadjutor Bishop of Los Angeles in 1972 on the first ballot. He succeeded as diocesan bishop on January 1, 1974. During his time as bishop he supported the ordination of women to the priesthood. He also supported the establishment of missions to new immigrants in Los Angeles. He was also involved in a number of lawsuits aiming to retain church properties which were taken over by congregations who left the Episcopal Church. Rusack took the decision to demolish St Paul's Cathedral in Los Angeles, which suffered extensive damage in an earthquake. Rusack died on July 16, 1986, as a result of a heart attack in
Pacific Palisades, Los Angeles. ==Personal life==