Blinded by Political Affinity

With this very unpleasing
Sneezing and weezing
The calliope crashed to the ground
--Manfred Mann

One sure sign of partisanship: accusing some people of biased behavior or judgment that you know they have political affinities different from yours, while not making similar accusations of people that you know have a political affinities similar to yours.

There is perhaps no better expression of the core tenets of social identity theory than politics.