Ka kammala wannan magana: A shekara ta 1918, ɗan Democrat McGlennon, wanda shi ne shugaban masu rinjaye a majalisar dattijai ta jihar, ya ci ɗan Republican William Ross da kuri'u 299 cikin fiye da 25,000 da aka jefa. McGlennon ya kasance wakilin da aka zaba a majalisar wakilai ta 66 na Amurka (4 ga Maris, 1919 <unk> 3 ga Maris, 1921), wanda ke wakiltar gundumar majalisa ta 8 na New Jersey a majalisar wakilai ta Amurka, amma ya kasance dan takarar da bai yi nasara ba don sake zabarsa a shekarar 1920 zuwa majalisar wakilai ta 67 na Amurka. Ya yi aiki a matsayin wakili ga
Babban Taron Jam'iyyar Democrat na 1920. A shekara ta 1924, an nada shi alƙali na New Jersey Court of Errors and Appeals kuma ya yi aiki har zuwa mutuwarsa. Cornelius kuma ya kasance mai kula da shugabanci a Harrison, New Jersey daga 1926 zuwa 1931.