There was some malfeasance - but, nothing even remotely close to some Deep State conspiracy.
He's accused of leaking to the Wall Street Journal that the FBI was trying to press forward on an investigation into the Clinton Foundation - despite pushback from the Justice Department. His leak was pretty clearly going after Lynch.
Also, still not sure what it has to do with the Mueller investigation. You have so much wrong in your short post.
"This is the guy who was head of the FBI when it appointed Mueller for the special prosecutor role."
The FBI had no role in appointing Mueller. That's the Attorney General (Rod Rosenstein as the acting AG in this case since Sessions had to recuse himself). McCabe had nothing to do with Mueller's appointment.
I'll give you a pass on "special prosecutor" since that is confusing. But, McCabe appointing Mueller?
"who also signed off on the FISA warrants to wire tap Trump Tower"
When was there a FISA warrant on Trump Tower? Carter Page had a FISA warrant on him after he left the campaign. How are you interpreting that as a wiretap on Trump Tower?
McCabe signed off one 1 of 3 FISA renewals on Carter Page. He wasn't the only one that had to sign off - Rosenstein (a Trump appointee) also signed off on the same warrant as well as judges appointed by Chief Justice John Roberts. There was already a FISA warrant and 2 previous renewals that had to demonstrate the previous ones had been productive.
But, McCabe was responsible for the "wire tap on Trump Tower."
