The tie that divides: Cross‐national evidence of the primacy of partyism2018 Articolo in Rivista Scientificacross national studies, ideological proximity, partisanshipWestwood, S. J., Iyengar, S., Walgrave, S., Leonisio, R., Miller, L., & Strijbis, O. (2018). The tie that divides: Cross‐national evidence of the primacy of partyism. European Journal of Political Research, 57(2), 333-354.