A long-awaited report on the Hillary Clinton email investigation criticizes "certain actions" by FBI investigators and says former FBI Director James Comey's actions were "extraordinary."

However, the report said evidence did not find that Comey himself was motivated by political bias or preference in his decisions.

The report by the Justice Dept.'s inspector general's office said some of the things that happened during the investigation were inconsistent with "longstanding policies, practices and norms."  

In particular, the report criticized several FBI employees for sending political messages that created the appearance of bias. In particular the report cited text messages between employees that included "[Trump's] not ever going to become president, right? Right?!" and a response of "No. No he's not. We'll stop it."

The IG report said this was "antithetical to the core values of the FBI and the Department of Justice."

However, the report said investigators found no evidence of "improper considerations, including political bias, directly affected the specific investigative actions we reviewed." They did, however, said the texts do cast a cloud over the entire FBI investigation and sow doubt about the FBI's work.

Regarding Comey, the report found the director deviated from established procedures and engaged in "ad hoc decisionmaking" at key moments during the investigation. 

"In so doing, we found that Comey largely based his decisions on what he believed was in the FBI's institutional interests and would enable him to continue to effectively lead the FBI as its director," the report said. "While we did not find that these decisions were the result of political bias on Comey's part, we nevertheless concluded that by departing so clearly and dramatically from FBI and [Justice] Department norms, the decisions negatively impacted the perception of the FBI and the department as fair administrators of justice."

The report also accuses Comey of "usurping the authority of the attorney general [at the time Loretta Lynch] and upset the well-established separation between investigative and prosecutorial functions," the report continued.

The report also criticizes Comey for publicly announcing his recommendation against criminal charges for Hillary Clinton in the email investigation, hiding his intentions from the attorney general.

Comey was also criticized for not contacting Lynch or then Deputy Attorney General Sally Yates directly about sending a letter to Congress on October 28, 2016, regarding the decision to reopen the investigation because of newly-discovered emails.

In a tweet about the report, Comey called the report's conclusions "reasonable, even though I disagree with some."

"People of good faith can see an unprecedented situation differently," he added.