Ewing served in Congress from 1877 to 1881 during the Hayes administration as a leading spokesman for those national politicians who wanted the nation's money supply used to expand commerce and fund westward expansion of the nation, not repay in gold the interest on civil war bonds Eastern bankers had bought to fund much of the civil war effort but whose antebellum lending practices to the South had helped slavery flourish. His 1875 national debates with hard money New York Governor Stewart L. Woodford set the stage for a rapid but brief rise in party national influence.