Washington (CNN) A former Playboy model who is alleging an affair more than a decade ago with President Donald Trump apologized to his wife, first lady Melania Trump, in an interview Thursday evening.

"What can you say except, I'm sorry?" Karen McDougal said on CNN's "Anderson Cooper 360."

She continued, "I'm sorry. I wouldn't want it done to me."

The White House has denied the alleged affair, which came to light in a Wall Street Journal story shortly before the presidential election saying the parent company of The National Enquirer had paid for McDougal's story and never published it.

A spokeswoman for the first lady did not respond to a request for comment.

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