Concepts such as post-truth or post-factual politics are commonly used as umbrella terms to refer to a host of phenomena that collectively constitute a significant challenge and, potentially, even an existential threat to the rights and values connected with liberal democracy. The EU-funded RECLAIM project will address the implications of such phenomena in three distinct phases by (a) generating a conceptual definition, operationalisation and empirical indicators to analyse post-truth/post-factual politics, (b) analysing the current state of play as regards the various dimensions of post-truth politics in Europe, and (c) using its own empirical findings regarding the state of play of post-truth politics to develop policy recommendations, methods and toolkits to effectively address the various expressions of the phenomenon.