I don't mean this in a rude or crass way, but good lord she is not exactly a looker. Not that she had the best genetics to work with but.....yikes.
Making negative comments about people's looks, something they have limited control over, isn't nice. If she were to see your comment (and the chances are not 0, despite what you may think) it would hurt her feelings.
One might say "well she's putting herself out there, she's fair game." Not that I think that makes it ok to disparage someone's looks, but ok yes she is putting herself out there. But keep in mind she grew up with this life and did not exactly choose it organically. Her mom is running for President and she may feel a sense of obligation to be helpful.
Qualifying with "I'm not saying this, even though I'm saying it" doesn't obviate any of that.
Furthermore she is pretty. That's something women do like to hear, as long as it is done tastefully.
