Let's replay the political debate: Hypervideo technology for visual sensemaking of televised election debates

•Hypervideo interactive visualisations improve sensemaking of televised political debates.•Visual analytics enhance sensemaking of large data and complex political debates.•Sensemaking tools improve people confidence in evaluating facts and evidence.•Sensemaking tools improve people active capability to re-assess and change assumptions.•Visual analytics narratives trigger questioning and changing of personal assumptions.