Gowdy made his comments during a discussion with Fox News host Martha MacCallum on Tuesday night.
"I think when history knows the full fact pattern that led Director Comey to have that July news conference – I mean, I think what your viewers know is a meeting on the tarmac between the spouse of the target of an investigation and the attorney general," he said.
"What your viewers don't know, Martha, and what Jim Comey frankly can't tell them because it's classified and I can't tell them because it's classified: There were a lot of other reasons that Jim Comey decided to take that decision upon himself," Gowdy said. "I think history is going to be much kinder to Jim Comey in that July press conference than the Democrats were when he had it."