“…The resulting public mobilization of competing political preferences has been labelled as the politicization of international institutions (Z€ urn, Binder, & Ecker-Ehrhardt, 2012). Recent literature traces evidence of such increasing politicization in individual attitudes (Dellmuth, 2016;Ecker-Ehrhardt, 2012), mobilization of interest groups (D€ ur & Mateo, 2014;Ecker-Erhardt & Z€ urn, 2013;Z€ urn & Walter, 2005), national partisan competition (Hooghe & Marks, 2009;Hutter & Grande, 2014;Rauh, 2015), national media (Rauh & B€ odeker, 2016;Rixen & Zangl, 2013;Schmidtke, 2018;Statham & Trenz, 2012), and protest events (Della Porta & Tarrow, 2004;Uba & Uggla, 2011). The authority-politicization nexus is often not direct and linear but rather mediated by specific events, policy crises, or particular national contexts (De Wilde & Z€ urn, 2012;Hooghe & Marks, 2009;Hutter & Grande, 2014).…”