In his public remarks over the years, Mr. Johnson describes Michael as his son and did not correct an interviewer who described Michael as “adopted.” Ms. Day said in an interview that the Johnsons did not formally adopt Michael because of the “lengthy adoption process.” Ms. Day declined to say whether Michael was using “Johnson” as his surname.
So, I’m not sure who Day is, that’s the only time they mention her. but apparently Ms Day is saying that, it wasn’t a “real” adoption. whatever that means. non legal, but the kid lived with them? they abducted him? he really is his son, but didn’t want to admit that?