After Yale, he clerked for Judge George Thomas Washington of the United States Court of Appeals for the District of Columbia Circuit and then clerked for United States Supreme Court Chief Justice Earl Warren from 1957 to 1958.

[3] He was in private practice from 1958 to 1960 in Hartford, Connecticut, and served as a graduate instructor at Trinity College.

[3] Newman was nominated by President Jimmy Carter on April 30, 1979, to the United States Court of Appeals for the Second Circuit, to a new seat created by 92 Stat.

[3] On December 8, 2016, at a special ceremony at the Supreme Court of the United States, Justice Elena Kagan presented to Judge Newman, on behalf of the federal judiciary, the 2016 Edward J. Devitt Distinguished Service to Justice Award.

[5] The Devitt Award honors an Article III judge who has achieved a distinguished career and made significant contributions to the administration of justice, the advancement of the rule of law, and the improvement of society as a whole.