"We identified numerous instances in which Comey used a personal email account (a Gmail account) to conduct FBI business", said Inspector General Michael Horowitz in the official report of the investigation.
The report, among other findings, said anti-Donald Trump text messages exchanged between FBI agent Peter Strzok and former FBI lawyer Lisa Page "cast a cloud" over the bureau's actions, although it found no evidence that their views "directly affected" investigative decisions.
'Doesn't get any lower than that!'
The president then retweeted several clips from former congressman Jason Chaffetz appearing on Fox & Friends discussing the report.
FBI Director Christoper Wray said "nothing" in the report "impugns" the integrity of the FBI workforce and that while the report found "errors in judgment" and policy violations, it found no evidence of political bias or improper consideration "actually impacting the investigations under review".
"During the 2016 campaign, Page asked Strzok: "(Trump's) not ever going to become president, right? "The IG report yesterday went a long way to show that".
Two Republican-led House committees say their own monthslong probe into the now-closed FBI investigation of Hillary Clinton's emails has so far shown "questionable decision-making" by the agency. "We'll stop it." Both were initially involved with the Mueller investigation but later removed from the team.
Obama said in a 2015 interview with CBS News that he first learned of Clinton's use of the private server "at the same time everybody else learned it through news reports".
Trump, however, has used the findings on Strzok, who also worked on the Russian Federation probe, to sow doubts about that investigation. The report focused in part on Comey's announcement in July 2016 that Clinton acted improperly but did nothing illegal.
But the 568-page report did no such thing.
On Friday morning, former Utah Rep. Jason Chaffetz (R) attempted to connect the dots Giuliani had presented by suggesting that "anything Mueller is doing with his investigation is tainted" by Strzok and Page's texts.
"Regarding Abedin's devices, witnesses told us that Abedin played largely an administrative role on Clinton's staff and, as such, they did not believe her emails were likely to be significant to the investigation", the IG report said.