Former senator Pete Domenici admits that he had a child out of wedlock. (J. Scott Applewhite/AP)

Former senator Pete Domenici of New Mexico, a Republican, disclosed Wednesday that he has a son born in secrecy over 30 years ago.

"More than 30 years ago, I fathered a child outside my marriage," Domenici told the Albuquerque Journal in a statement. "I deeply regret this and am very sorry for my behavior. I hope New Mexicans will view that my accomplishments for my beloved state outweigh my personal transgression."