<prompt> Bhala okuqhubekayo kwalesi sigaba - Ngemva kokushiya iSenate, uCowan waphinde waqala ukusebenza njengommeli eGreensburg. Waqhubeka nokusekela iDemocratic Party, futhi wasekela uHorace Greeley, owayengumongameli weDemocratic and Liberal Republican ngo-1872. Wasekela ukhetho lukamongameli weDemocrat uSamuel J. Tilden okhethweni lwango-1876, futhi wayengumsekeli kaWinfield Scott Hancock njengomongameli ngo-1880, kufaka phakathi nokuhambela iDemocratic National Convention yalowo nyaka  <response>: njengesithunywa. 