It may be distasteful, but it's politically effective. That's why the left has been doing it to the right for 30 years.
I don't know about you, but I'm tired of losing elections. And what I've seen in my adult life, is that the party that takes the high, moral road seems to lose with great frequency.
Biden's kid isn't a kid. She a 26 year-old STATE employee who just allegedly committed a felony. It's news worthy and its germane to contemporary political issues and therefore it's fair game.
IIRC, Jeb Bush’s dauhter was into this stuff, too, at about the same age. The difference is, Jeb got help for her.
What is Biden doing to help his daughter?
Biden has always been an absentee father, despite “riding the Amtrak home every night.”
The one I really feel sorry for is Jill Biden. She just lost her mother, her daughter is a coke-head, and she is married to one of the most egotistical bastards in DC. Poor woman!