Last October 2017, the IRS admitted, due to a court order, that it had deliberately and repeatedly targeted for adverse action and/or delay conservative groups. It also paid an undisclosed penalty to be split among those groups. The only links I can find covering the court decision and IRS statement are right-leaning, so why bother posting since the messenger will be the focus and not the facts.
The FBI officials that I believe involved in both the Hillary shenanagans and the Trump investigation were, until, recently, the FBI's General Counsel, the FBI's Chief of Staff, the FBI's head of the CI division, the FBI's deputy director, and the FBI director. None of them were Trump appointees. Holdovers? Yes. Appointed? No.
All of this - the IRS, the unmasking of Americans by the NSA, and the FBI's seemingly lax investigation of Hillary's e-mail (along with all the details I posted earlier), etc, etc, etc - matters because if one side gets away with it, sure as sh1t the other side will go there and beyond. Democrats and Republicans will happily use instruments of force against us if we let them.
edited to add: And from the FBI's leaders behavior thus far revealed, there are those in those institutions willing to help with that use.
I'm agin that.