Lewis returned to The New York Times that year as its Washington bureau chief. He was assigned to cover the Justice Department and the Supreme Court. In 1956–57 he was a Nieman Fellow at Harvard Law School. He won a second Pulitzer Prize in 1963, again in the category National Reporting, for his coverage of the U.S. Supreme Court. The citation singled out his coverage of the court's reasoning in Baker v. Carr, a Supreme Court decision which held that federal courts could exercise authority over legislative redistricting on the part of the states, and the decision's impact on specific states.
