This article explores the relationships between (so-called) ‘non-traditional’ development cooperation (NTDC) and political leadership. Using the case studies of Brazil and South Korea, we propose that certain emblematic elements of NTDC discourse and practice can act to influence the relationship with political leaders in particular ways. These are (a) elevated language of affect, (b) interleaving of personal biographies with the developmental trajectories of states, (c) the use of NTDC to legitimise domestic policies and promote domestic political leadership, (d) the prominence of presidential diplomacy and (e) the challenges confronting rapidly expanding domestic development cooperation institutions and systems.