In most states, a 16 year can legally consent to having sex, can get married, and driving a car. A 16 year old is not a child, but is not a full grown adult. They are somewhere in between.
so in your eyes as well as several more on this board the 16yr old is of legal consent and it is okay for him to be hit on by a 52 yr. old gay congressman.
If this were your son how would you react? I can tell you it would have been my mission to destroy this dirt bag's career. He should have been forced out years ago.