Strategists should make sure KH is allowed to go off-script a bit. Trump will fling all sorts of racist/sexist insults her way. I don't think it is wrong for her to do two things: fling some well-crafted ones back (afterall, she worked for a president who literally doesn't [Poor language removed] his pants, isn't a 22x accused sexual assaulter, isn't a convicted criminal, etc. etc.) and show a bit of toughness, so long as it is genuine and doesn't come as scripted (like those cringey scripted moments by H Clinton), but also stick to policy and emphasize the moral difference between Dems and the right-wing christian fascists. This might just galvanize some of the undecided.
Of course being a woman, if she comes off as tough and effective, sexist-misogynists like dylsexicbleu and edwardcrompton will always find a way to fault a strong woman ("...she's hysterical..." "...she has no kids...", blah blah blah), but these clowns don't count as functioning members of society or this forum.