Rubuta ci gaba ga wannan sakin layi - Asalin Democrat na 'Yancin Soil, Underwood ya zama dan Republican lokacin da aka shirya jam'iyyar kuma ya zama Shugaban majalisar Republican ta farko ta jihar Vermont a 1856. Ya kuma yi aiki a matsayin wakili a taron farko na Republican na kasa
daga baya a wannan shekarar.