WATCH: Kirsten Powers destroys ex-Trump aide Miller for calling Kamala Harris 'hysterical'
Kirsten Powers (left) and Jason Miller (right) via CNN screengrab.

During an appearance on CNN, Jason Miller, a former aide to President Donald Trump, called Sen. Kamala Harris (D-CA) "hysterical" for her Russia questions during Attorney General Jeff Sessions' congressional testimony -- and the comment earned him censure from fellow panelist Kirsten Powers.

While praising Sessions' testimony, Miller said the attorney general "knocked away the hysteria from Kamala Harris and others who wanted to make this a partisan show." While responding to another question, Powers returned to Miller's offhanded comment.

"How was Senator Harris hysterical?" she asked Miller. "I don't understand that. She was asking some tough questions."

"It was a completely partisan screed," Miller began, but Powers cut him off, asking "how was that hysterical?"

"From my, I would say objective perspective, it didn't seem like there was any effort to try to get to a real question or get to the bottom of things."

"She was very dogged, there's no question, but I wouldn't say she was any more dogged than Ron Wyden was, would you?" she retorted.

Miller tried to explain why he used the term "hysteria," but Powers wasn't having it, and said the term often has a "gendered" quality.

"It's just women who are usually called hysterical," she concluded.

Watch the entire "hysterical" exchange between Miller and Powers below via CNN.