This article complements analyses of the partisan politicization of the European Parliament from roll-call votes with an analysis of political groups' use of parliamentary questions. Questions offer an institutional opening for issue politicization and for partisan differentiation. Parliamentary groups have incentives to shape EU policies by drawing the attention to their topics of predilection and by controlling ongoing action. We make use of a new dataset on questions for oral answer (2004–19) to test if this results in European party groups emphasizing differentiated topics in their questions to the Commission and the Council. Our analyses confirm groups' differentiated issue attention. These findings have important implications for understanding the partisan politicization of EU policies and confirming the truly political nature of deliberation in the EP. They reveal patterns of partisan opposition different from those expressed in votes and emphasize the relevance of parliamentary questions as a key institutional window for politicization.

中文翻译：

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在欧洲议会问题政治化。口头回答的议会问题分析（2004-19）*

本文通过对政治团体使用议会问题的分析来补充对唱名表决中欧洲议会党派政治化的分析。问题为问题政治化和党派分化提供了制度性的机会。议会团体有动机通过将注意力吸引到他们偏爱的主题和控制正在进行的行动来制定欧盟政策。我们利用新的口头回答问题数据集（2004-19 年）来测试这是否会导致欧洲政党团体在向委员会和理事会提出的问题中强调不同的主题。我们的分析证实了群体对问题的不同关注。这些发现对于理解欧盟政策的党派政治化和确认欧洲议会审议的真正政治性质具有重要意义。它们揭示了不同于投票中表达的党派反对模式，并强调了议会问题作为政治化关键制度窗口的相关性。