Complex sentence: He served as president of the New York City Bar Association from 1956 to 1958, and in 1970 presided over the Bar's Committee on Congressional Ethics, which recommended that legislators divest themselves of holdings in companies relevant to legislation they were drafting.
Split into simpler sentences: He served as president of the New York City Bar Association from 1956 to 1958. In 1970 presided over the Bar's Committee on Congressional Ethics, which recommended that legislators divest themselves of holdings in companies relevant to legislation they were drafting.