Kammala jumla mai zuwa: Jenkins ya zama mai aiki a siyasar gida, yana wakiltar Jam'iyyar Labour a Majalisar Monmouthshire County. Ya kuma kasance mai ra'ayin gurguzu mai karfi, yana neman canji mai sauri da tashin hankali. A lokacin da
Janar yajin aiki na 1926 an kama shi a kan tuhume-tuhume masu jayayya, aka kai shi gaban alkali kuma aka tura shi kurkuku na watanni tara, kodayake wannan bai hana shi komawa Kwamitin Zartarwa na Kasa na Jam'iyyar Labour ba.