He also served as a member of the Republican National Committee from North Carolina from 1870 through 1872. During this period, he was also found to be in the pay of a "ring" whose major interests seemed substantially similar to Abbott's own political positions. During his tenure in the Senate, he spoke in orthodox terms on matters of suffrage, and was helpful in handling the details of army administration. He devoted a good deal of time to improve the harbor of Wilmington, and hoped that the railroads of the Carolinas would be consolidated and made part of a southern transcontinental system. However, for all his efforts, his single greatest achievement was the imposition of a duty on peanuts. He was not nominated for a second term to the Senate.