Which is why Comey was very precise in his wording of his denial of knowledge of surveillance and having searched the FBI, when speaking on Trump's tweet .
That does not mean he did not know of Trump being spied on and that info being passed around, it just was not the FBI or him doing it. Now, he had no problem using shady democrat IT intelligence source, with and ax to grind against Russia, as a way to put an investigation into place on Trump. He is as dirty as the rest in his own way.