Allegations of corruption in McMath's highway department, brought by a grand jury dominated by utility minions, were eventually proven unfounded in three separate proceedings. Two grand juries returned no indictments, but a third on which several Middle South managers served returned three, each alleging shakedowns of highway contractors for campaign contributions. All of the accused were acquitted. There was no allegation of personal wrongdoing by McMath. However, the assertions against his administration dogged him for the rest of his life and Promises Kept includes a chapter in which McMath refutes the charges and chastises his opponents for abusing the judicial system to fabricate them. The former governor's October 22, 1954 sworn statement before the U.S. Senate committee investigating monopoly influence over the distribution of the nation's electrical power, in which he recounts Middle South-AP&L's manipulation of the Arkansas "Highway Audit Commission" and the grand jury process, warrants inclusion in any anthology of significant state papers of the 20th century. The truthfulness of McMath's testimony describing in detail this use of raw corporate power to defeat reform and destroy the reformer was never disputed, and no rebuttal was offered. See Further Reading, below.
