There is a fair amount of proof that some of the agents are partisans.
Some meaning how many, generally speaking? Partisan in what way? Because Id love to see the exact breakdown of FBI agents (the FBI generally being a conservative-leaning body) that have allowed their beliefs to affect the integrity of their work. Of course the FBI is full of people with partisan beliefs. We’re a 2 party state. Where are you going to find these intellectual eunuchs who don’t have political leanings?
1. McCabe’s wife received hundreds of thousands of dollars from the Hillary / “Friends of Bill” network while running for state Senate in VA, while Clinton was under FBI investigation.
Think of that in any other context: around $500k is funneled to the spouse of the Deputy Director of the FBI by personal friends and allies of an accused criminal. That looks bad.
2. Peter Strzok played a key role in the Clinton and Trump investigations. He altered the language of the FBI’s Hillary findings, changing key language to construe her actions as non-criminal. He talked about Trump being an utter idiot, supporting Hillary and saying “she just had” to win, Trump “can not be President”, etc. One text:
"I want to believe the path you threw out for consideration in Andy's [Andrew McCabe, Deputy Director of the FBI] office—that there's no way [Trump] gets elected—but I'm afraid we can't take that risk. It's like an insurance policy in the unlikely event you die before you're 40 ... "
It looks fishy. As the partisan liberal Vox said, “combined with the other texts openly critical of Trump and supportive of Clinton, it certainly suggested some degree of bias on Strzok’s part”.
Couple that with Comey leaking stories to the media and things look extremely unprofessional.