Well, McCabe says he personally authorized a counterintelligence investigation into President Trump following Comey's firing. So there's that.
I don't think he lied about that. He did kick off the coup in earnest by using Trumps words in the firing letter to reason that firing Comey gave him probably cause to suspect that Russia was pulling his strings. Absurd but it was enough given zero oversight but the courts, the congress, or the DOJ.
See #21