Comey resented Hillary Clinton stemming from the FBI investigation into the Rose law firm. Comey wanted an indictment about subpoenaed papers found in Hillary's private WH quarters but denied by DOJ.
Comey's long-standing resentment of the Clintons came to play last July and again in late October and within the partisan context of the 2016 election in which Comey was sharply criticized by Trump and the GOP after he announced* there would be no charges filed last July.
Comey's no hero of the Republic. He is a skilled inside the beltway Republican power player who at key moments in his career chose partisanship. It's supremely ironic that Comey's hero status stems from Trump's ham-handed effort at obstruction.
Comey's attempt to portray his decisions as those between disaster and catastrophe we're not convincing. According to Comey, exposing the Clinton investigation but not the Trump investigation was the lesser of two unavoidable evils. Apparently he didn't mind being second guessed about the Clinton probe but he would not have been able to tolerate being second guessed over the Trump probe.
* preempting his superior AG Lynch
Arise arise he cried so loud with a voice without restraint/come out ye gifted kings and queens and hear my sad complaint/no martyr is amongst ye now whom you can call your own/but go on your way accordingly and know you're not alone