 Kunyora kupfuurira kweiyi ndima - Mushure mekurasikirwa nekusarudzwazve kuImba muna 1864, Creswell akasarudzwa kuSeneti yeU.S. kuzadza nzvimbo isina kuwanikwa nekuda kwekufa kwaThomas H. Hicks, achishanda kubva muna 1865 kusvika pakupera kwetemu iyoyo muna 1867. Munguva yake muSeneti, akashanda sachigaro weKomiti yeRaibhurari mu39th Congress. Pamusangano Wenyika Yose weRepublicanmuna 1868, zita raCreswell rakakwidziridzwa nokuda kwegadziriro dzomutungamiri wenyika kana kuti mutevedzeri wemutungamiri. 