I agree. I see it all the time, on the news, here on FR, and it irks me just a little bit.
I see no reason to keep referring to Michael as the adopted son. He is Reagan's son, pure and simple. Making the distinction repeatedly only serves to set him apart from the rest of the family: Oh, he's the adopted son... As if there's some sort of stigma attached to it.
Exactly.......The media probably enjoys doing it because he's such a prominent conservative.