So, when it was revealed on Thursday that former Federal Bureau of Investigation director James Comey used a personal email account for official government business by the Justice Department's internal watchdog, many saw the irony.
"It was extraordinary and insubordinate for Comey to do so", Inspector General Michael Horowitz wrote in his report, "and we found none of his reasons to be a persuasive basis for deviating from well-established department policies in a way intentionally created to avoid supervision by department leadership".
The report does find that Comey's actions were not politically motivated to help either candidate.
Giuliani, who has spoken to a wide variety of media outlets since he agreed to join Trump's legal team this past April, railed against the president's potential Democratic opponents in the 2020 election - including former Vice President Joe Biden - in a separate interview.
Then, 12 days before the Nov 8 election, Comey reopened the investigation, after new evidence surfaced.
Inspector General Michael Horowitz concluded in a long-awaited, 500-page report that Comey made a "serious error of judgement" in announcing he was reopening the email server probe just before the 2016 USA presidential election.
"It contains no evidence to make any reasonable person conclude that the Mueller investigation is anything other than independent, impartial & just as important today as it was before this report was issued", Senate Minority Leader Charles E. Schumer, D-N.Y., wrote on Twitter after reading the report on Thursday.
The lawmakers are referencing Republican lawmakers efforts to obtain documents from the Justice Department about the launch of the Russian Federation probe, pointing to the FBI's deployment of a government informant to meet with Trump campaign officials as evidence of a "deep state" bias against Trump within the agency.
"I think Christopher Wray's a very different from Comey", he said.
Comey tweeted today that the IG's conclusions are reasonable, but that he disagrees with some of them. "That's the nature of hard decisions; they don't allow for certainty". The IG found the text messages sullied the FBI's reputation and "cast a cloud" over its investigation into Democrat Hillary Clinton's email but did not affect the investigation itself.
'Trump's not ever going to become president, right?'
Strzok replied: "No. No he won't".
That upset Republicans, who said Mr Comey's statement could have helped Mrs Clinton's election campaign.
Trump has been eager for the report in hopes that it would vindicate his decision to fire Comey and undermine special counsel Robert Mueller's investigation.