Department of Justice is supposed to be impartial.
I believe that's the Republican's argument against the DOJ and the FBI with regards to the Trump investigation. To lay them low for showing ANY personal bias. I remember Democrats in P&N standing fiercely behind those people having normal human biases, for it to be expected even. That their bias in no way influenced their impartiality or ability to do their job.
Now that we've found the opposite bias in someone we want impartial, shall the principle actors in P&N flip their positions?
I agree, simply being a Trump supporter is not a reason to find someone impartial.
Show me something they did professionally that’s wrong.