T. Frelinghuysen of New Jersey, a Stalwart recommended by ex-President Grant. Frelinghuysen advised Arthur not to fill any future vacancies with Stalwarts, but when Postmaster General James resigned in January 1882, Arthur selected Timothy O. Howe, a Wisconsin Stalwart. Navy Secretary William H. Hunt was next to resign, in April 1882, and Arthur attempted a more balanced approach by appointing Half-Breed William E. Chandler to the post, on Blaine's recommendation. Finally, when Interior Secretary Samuel J. Kirkwood resigned that same month, Arthur appointed Henry M. Teller, a Colorado Stalwart to the office. Of the Cabinet members Arthur had inherited from Garfield, only Secretary of War Robert Todd Lincoln remained for the entirety of Arthur's term. Civil service reform In the 1870s, a scandal was exposed, in which contractors for star postal routes were greatly overpaid for their services with the connivance of government officials (including Second Assistant Postmaster General Thomas J. Brady and former senator Stephen Wallace Dorsey). Reformers feared Arthur, as a former supporter of the spoils system, would not commit to continuing the investigation into the scandal. But Arthur's Attorney General, Brewster, did in fact continue the investigations begun by MacVeagh, and hired notable Democratic lawyers William W. Ker and Richard T. Merrick to strengthen the prosecution team and forestall the skeptics. Although Arthur had worked closely with Dorsey before his presidency, once in office he supported the investigation and forced the resignation of officials suspected in the scandal. An 1882 trial of the ringleaders resulted in convictions for two minor conspirators and a hung jury for the rest. After a juror came forward with allegations that the defendants attempted to bribe him, the judge set aside the guilty verdicts and granted a new trial. Before the second trial began, Arthur removed five federal office holders who were sympathetic with the defense, including a former senator. The second trial began in December 1882 and lasted until July 1883 and, again, did not result in a guilty verdict. Failure to obtain a conviction tarnished the administration's image, but Arthur did succeed in putting a stop to the fraud. Garfield's assassination by a deranged office seeker amplified the public demand for civil service reform. Both Democratic and Republican leaders realized that they could attract the votes of reformers by turning against the spoils system and, by 1882, a bipartisan effort began in favor of reform. In 1880, Democratic Senator George