Syndicated columnist and Fox News contributor Charles Krauthammer said Monday on “Special Report with Bret Baier” that Hillary Clinton's campaign should have been honest from the beginning about the presidential nominee's recent health problems.

"I think this is another case of the cover up being worse than the crime. If it is what they say it is, this is totally benign," Krauthammer said. "They should have explained it right away and this just, as everybody can see, it just adds to the  impression that these people are simply incapable of telling the truth."

The Democratic presidential nominee suffered a medical episode at a 9/11 memorial program in New York Sunday. Her doctor later said she was diagnosed with pneumonia on Friday and was being treated for dehydration.

Krauthammer added that not telling the truth about simple things makes Hillary look bad.

"They just find a way to make themselves make her look untrustworthy and that's where the damage is," he said.