partisanship
noun/ˈpɑːtɪzænʃɪp/
/ˈpɑːrtəznʃɪp/
[uncountable] (often disapproving)- the fact of showing too much support for one person, group or idea, especially without considering it carefully synonym bias (1)
- We are seeing a trend towards greater press partisanship.
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partisanship