Rubuta ci gaba don wannan sakin layi - Daga 1981 zuwa 1988 shi ne Shugaban Kwamitin Demokradiyya a Amurka ta Tsakiya (PRODEMCA), wanda ya soki 'yan Marxist-Leninists a Amurka ta Tsakiya, musamman Sandinistas a Nicaragua da FMLN a Amurka ta Tsakiya; PRODEMCA kuma ana kiranta da "Abokai na Cibiyar Demokradiyya a Amurka ta Tsakiya". Baya ga sukar 'yan juyin juya hali, Kemble ya matsa wa Majalisa don tallafawa Shugaban Kirista na Demokradiyya na El Salvador José Napoleón Duarte, a lokacin Yaƙin Salvadoran.
; Ya kuma yi jayayya cewa ya kamata Majalisa ta ba da kuɗin Nicaragua Contras, sannan ta shiga cikin yaƙin neman zaɓe na Sandinistas, don matsa lamba ga Sandinistas don yin shawarwari game da yarjejeniyar zaman lafiya tare da ƙarin tabbaci ga 'yan adawa na jama'a. A cikin goyon bayansa ga kudade na Majalisa na Contras, Kemble na ɗaya daga cikin "Gang of Four" na fitattun 'yan gurguzu ko masu adawa da Yaƙin Vietnam; na biyu shi ne tsohon abokin gaba a lokacin Yaƙin Vietnam, Bruce Cameron, sauran kuma Robert S. Leiken da Bernard W. Aronson. Gang of Four ya bambanta da Gwamnatin Reagan a wasu tambayoyi. Misali, sun goyi bayan kokarin da aka yi na canja wurin ikon kudi na Contra daga CIA da Ma'aikatar Tsaro zuwa USAID na Ma'aikatar Harkokin Wajen; sun kuma goyi bayan tattaunawar da gwamnatin Reagan ta yi adawa da "masu tsauraran ra'ayi" wadanda ke son kayar da Sandinistas, a cewar Cameron. Harkokin siyasar Kemble na Amurka ta Tsakiya a shekarun 1980 ba su da mashahuri a tsakanin 'yan sassaucin ra'ayi da' yan gurguzu na dimokiradiyya a Jam'iyyar Democrat.