Data protection laws and policies have been studied extensively in recent years, but little is known about the parliamentary politics of data protection. This limitation applies even to the European Union (EU) that has taken the global lead in data protection and privacy regulation. For patching this notable gap in existing research, this paper explores the data protection questions raised by the Members of the European Parliament (MEPs) in the Parliament's plenary sessions and the answers given to these by the European Commission. Over a thousand of such questions and answers are covered in a period from 1995 to early 2023. Given computational analysis based on text mining, the results indicate that (a) data protection has been actively debated in the Parliament during the past twenty years. No noticeable longitudinal trends are present; the debates have been relatively constant. As could be expected, (b) the specific data protection laws in the EU have frequently been referenced in these debates, which (c) do not seem to align along conventional political dimensions such as the left-right axis. Furthermore, (d) numerous distinct data protection topics have been debated by the parliamentarians, indicating that data protection politics in the EU go well-beyond the recently enacted regulations.