“…Focusing, inter alia, on the so-called 'migration crisis, ' Webber (2019) further expanded on a second comprehensive theoretical contribution-post-functionalismarguing that Hooghe and Marks' (2019) approach is best equipped to understand the consequences of the crisis on European integration, as post-functionalism argues that "[m]ass politicization and the growth of identity politics are likely to create 'downward pressure on the level and scope of integration"' (Hooghe & Marks as cited in Webber, 2019, p. 8). Recent studies provide rich empirical probes of how the EU has responded to crisis, whilst some few studies also aim to theoretically explain mechanisms of how the EU tackle crisis, e.g., through disintegration (Vollaard, 2018), or concep-tually assess effects of crisis on the European political order, for example by pushing the EU towards differentiation and segmentation (e.g., Bátora & Fossum, 2019). Both Vollaard (2018) and Bátora and Fossum (2019) suggests that the EU has muddled through crises, either by member-states balancing different choices of exit, voice and loyalty (Vollaard, 2018), or institutionally through lock-in mechanisms influenced by pre-existing segmented institutional arrangements (Bátora & Fossum, 2019).…”