My six year old step daughter does not like our newborn and I have even seen her hit her. how do I tell my husband about it?

Please understand that telling your husband is not important and not an issue either. The fact is that your girl has become insecure after the coming of the new baby in the home. She is suffering from attention deficiency. She now feels that the new baby has taken away all the love of you two from her. I think, more than your daughter you guys need to correct yourself. I understand that little one needs attention as he is totally dependant on you but understand that your daughter is very observant. She sees that you are not giving her enough time and love and it is all happening because of the new baby. I think at times when you have no choice but to be the little baby, you involve your daughter doing little things with you. While changing diapers, instead of making her sit in the corner, ask her to help you in fetching diapers. Talk to her while you are feeding the baby. Sit with her and read stories to her when the baby is sleeping. Tell her, that when the baby grows up, she will be the one whom the baby will look upto. When going out, make your daughter walk the pram. So, keep you daughter involved. Don't make her feel lonely and alone. Because elders get engaged in doing chores of the little baby not realising that kids around are watching you and vying for your attention. http://www.wikihow.com/Help-Your-Child-Accept-a-New-Baby https://www.psychologytoday.com/blog/how-raise-happy-cooperative-child/201204/8-steps-helping-your-older-child-adjust-the-new-baby