Tom Long's new article, "Domestic contestation and presidential prerogative in Colombian foreign policy,” has just been published by the Bulletin of Latin American Research. The article is co-authored with Sebastian Bitar and Gabriel Jiménez Peña. The article pushes back against the dominant presidentialist focus in the study of Colombian foreign policy. Drawing on insights from recent foreign policy analysis literature and evidence from several cases (Plan Colombia, US military bases, free trade talks with China, and ICJ arbitration of a maritime border with Nicaragua), this article challenges commonplace presidentialist assumptions. A novel model of ‘contested presidentialism’ better captures how Colombian domestic actors mobilise to raise political costs to block or modify presidential preferences. Research for the piece started during Tom's British Council Researcher Links visit to Colombia and then was advanced during Sebastian's time at Warwick as an IAS Visiting Fellow. During the latter visit, an earlier version of the paper was presented at PAIS.