: the quality or state of being partisan: strong and sometimes blind adherence to a particular party, faction, cause, or person
political partisanship
The Court is so riven by partisanship that justices even pick their law clerks in ways influenced by ideology … Anthony Lewis
The succession of Civil War, Reconstruction and the Gilded Age was marked by bitter partisanship, endemic corruption, appalling violence and a general sense that democracy was failing. Jon Grinspan