At the conclusion of the war, General Ewing once more made his home in his native State. He was soon prominent in political affairs, giving his voice and vote to such measures as in his opinion were for the best interests of his country. He was a member of the Ohio constitutional convention of 1873-4, where his legal attainments and admirable powers of debate gave him a foremost place. As a member of the Democratic majority in the Forty-fifth and Forty-sixth Congresses, he was one of the leaders of his party in resisting and stopping the employment of Federal troops and supervisors at elections conducted under State laws, and also in the successful movement for the preservation of the Greenback currency, the remonetization of silver, and the issue of silver certificates, but for which measures of finance the currency would have been greatly contracted, to the infinite and protracted distress of the industrial and debtor classes. In 1879, he was the Democratic candidate for governor of Ohio, and made an able canvass of the State, but the Republican majority was too large to be overcome. In 1882, that magnetic attraction that draws so many men to New York city, made General Ewing a member of the bar of the metropolis, where the enlarged opportunities of his profession have been met by a mental equipment and training equal to their most exacting requirements, and where his success has been of a marked character. To this legal ability is added a ripe scholarship, unusual grace as a speaker, and a personal magnetism that charms all with whom he comes in contact. His published speeches in Congress and on the stump have been numerous, and marked by their information, ability, liberality of thought and patriotism. Although his purely literary efforts have been less numerous, because of the active professional life that has been thrust upon him, the work he has done in that direction shows how much he might have accomplished, had his life been given to letters; for example, an address delivered at the Centennial celebration of the settlement of the Northwest territory at Marietta, Ohio, July, 16, 1889, and his address before the Kansas State Bar Association, on January 7, 1890, favoring the abolition of the requirement of unanimity, of juries in civil cases, and urging the codification of the “private law”—both of which speeches have attracted wide attention, and most favorable comment.