Washington (CNN) A scandal that engulfed the White House last year has drawn renewed attention after a former top aide to President Donald Trump penned an op-ed on trade and his ex-wife penned an opinion piece of her own taking issue with him being given a platform despite never having apologized for allegedly physically and verbally abusing her.

Rob Porter resigned last year from his role as White House staff secretary after two of his ex-wives accused him of years of consistent abuse, which he denied.

After largely remaining out of the public arena since then, Porter wrote an op-ed for The Wall Street Journal last week about Trump's international trade policy, prompting his ex-wife, Jennie Willoughby, to write in The Washington Post that his "sudden return to the public eye is deeply troubling to me."

"I can't speak for any therapy or counseling, or remorse or repentance that Rob has done privately, but in order to be able to step back into public service, there has to be some sort of public acknowledgment that what you did was wrong and you would like to have another space, another shot. And I think that's the piece that's missing for me," Willoughby told CNN's Erica Hill on "New Day" Friday.

Willoughby, who feels that there should be a road to redemption, said that she had been in fairly regular contact with Porter until about a month ago regarding a path back to the public stage.

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