Final answer:
Grover Cleveland replaced Chester A. Arthur as president in 1884, after Arthur, who was associated with political machines despite his support for civil service reform, lost the election. Cleveland won support for his stance on tariff reduction and later served nonconsecutive presidential terms.
Step-by-step explanation:
Democratic Grover Cleveland replaced Chester A. Arthur as president in 1884. Cleveland's victory in the 1884 election was partly due to his support for reducing tariffs, which earned him support from the South and others interested in exporting U.S. goods. Chester A. Arthur had previously succeeded James A. Garfield as president after Garfield's assassination and hoped to be elected in his own right in 1884. Despite Arthur's support of the Pendleton Act which took significant steps towards civil service reform, he remained tied to the political machines that secured his vice-presidential nomination and thus lost to Cleveland. Cleveland would later serve nonconsecutive terms as he was defeated by Benjamin Harrison in the 1888 election but won against Harrison in the rematch of 1892.