Kammala wannan jumla: Sundlun ya kasance wakili ne a taron kasa na jam'iyyar Democrat a 1964,
1968, 1980, 1988, da 2000, da kuma Yarjejeniyar Tsarin Mulki ta Rhode Island na 1985. Ya kasance memba na Hukumar Makarantar Providence daga 1984 zuwa 1990. Kuma daga 1995 har zuwa mutuwarsa, Sundlun ya koyar da kimiyyar siyasa da tarihin Rhode Island a Jami'ar Rhode Island a matsayin "Gwamna a Gida".