Changing the subject: an analysis of candidates' issue emphasis in televised election debates, 1985-2019

Election debates are key campaign events that allow citizens to compare politicians' issue positions side-by-side. While debate moderators try to keep candidates on-topic to contrast issue positions, candidates can try to shift the debate to off-topic issues instead. Election debates thus provide a unique setting to study candidates' issue emphasis. In this context, we study: who veers off-topic, on which issues, and when? Our theory-driven quantitative content analysis of 24 Belgian election debates (1985-2019) shows that different candidates are equally likely to veer off-topic, but when they do, they emphasize their party's core issues and follow previous off-topic speaking turns.