The congressman told Fox News that he was not surprised by Comey's Sunday announcement but that the letter left unanswered questions about the investigation into Clinton's email use.
"I don’t know that it’s surprising that they came to the same conclusion that Hillary Clinton was so careless with classified information, this mess that she created," he said. "I was actually more surprised ten days ago to announce that they were looking at new information."
"But I still have a lot of questions: Is that new information? Is that classified? What other people are implicated? How many other instances were there? We don’t know the answer to any of those questions," Chaffetz continued.
When Fox News' Bret Baier noted that Comey said the FBI did not find intent on Clinton's part, Chaffetz suggested that Clinton had been given special treatment.
"That begs the question of what level do you need to get to actually prove intent?" he asked. "The same conclusion is that the Obama administration is not going to prosecute this case."
"I think that’s why people are questioning Lady Justice and when she looks at the Clintons, does she look at them differently than how she would look at anybody else? Because if there’s somebody in our military who is dealing with classified information the way Hillary Clinton was, they’d be in jail. And they probably should be," Chaffetz continued.
The congressman also said that he still has questions about whether Clinton committed perjury and noted that the FBI may still be investigating the Clinton Foundation.
Watch the interview via Fox News: