I will give with one hand, and take away with the other.
Conservatives and Republicans, even those who are not big fans of Trump, are increasingly disquieted by the behavior of the FBI and the Department of Justice WRT the Trump campaign in 2016. There is something frankly amazing about the lack of awareness of how, exactly, one tries to get good information when one is suspicious of a plausible candidate from one of the two major parties.
Yet let it be noted that I understand some of this. In 2008, conservatives felt they were raising legitimate questions about Obama. There were red flags. Has no one noticed that this is a Chicago politician? That his father was not a citizen and his mother hated America? That he spent formative years abroad in in ambiguous situations? That he is frequently deceptive in what he says now, and his autobiographies leave out large portions of his life, as if he is trying to flood the market with distracting information? That there are almost no friends or witnesses to give evidence of his life? Has NO ONE looked into this? I think it likely that if the FBI, NSA, CIA or whatever had looked into his life with great suspicion, and not been too careful about the rules - BECAUSE WE ARE TALKING ABOUT A POSSIBLE PRESIDENT HERE - conservatives might have shrugged, so long as it wasn't too bad. They were in fact angry that apparently no one was concerned.
That is the state of mind the people at the intelligence agencies had about Trump. He is something different. He has done business with shady characters. (New York real estate. Duh. Most of those shady characters are our own, not Russians.) He might even mean well but be entirely duped by Putin or whoever. I can see why the thought would rise...but he might become president. Don't we have a responsibility....
There is a part of this that is quite reasonable, if you put yourself in their shoes.
I sometimes sit at a team meeting discussing dangerous, or possibly dangerous patients. These are sometimes manipulative people who stir up powerful emotions, who are trying to game the system to avoid consequences. They shift the blame skillfully, they find powerful allies (ACLU, DRC, legislators, judges, even federal agencies), and uncannily identify weaknesses in their providers. They can get our hospital or their outpatient agencies running down a road of being ready to violate their rights, because not only are they potentially dangerous, but they have pissed us off, offended our sense of justice, and look like they are going to get away with it.
But it doesn't last. More than one person on the team will pretty rapidly declare "Look. Let's look at what our job is here. Ignore the part about what a jerk s/he is. What's our responsibility? What are the rules and what are the guidelines?" It's not just about will we get caught? or how will this look? It is stepping back and seeing the possible downstream consequences. It matters. At a basic level, it's just our job to do that.
That is what I fault the intelligence agencies for. First, do your job. I have some understanding of the panic that sets in that gets people saying "But...but...but...TRUMP!" Yet I ultimately don't believe it. Is the claim that if Ted Cruz were the nominee then Hillary Clinton's emails would have been thoroughly investigated, sure, but only because of this amazing extremity of Trump the FBI was slapdash, not even taking possession of her computer, because THAT was supposed to be too much of an interference with the election? Is there anyone who believes that? Eventually, someone at the table has got to point out that the agency is undertaking to break many rules to investigate a duly-nominated candidate of a major party, at the behest of the leader of the other party.
Apparently, the bias was so entire that no one at the table said that.