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?

your stepdaughter is obviously going through a crisis, where she is experiencing insecurity. imagine the situation for her. first, her father gets her a new mother, and then, her father also gets a new baby which means that she is not the only point of attention for him anymore. as a child, it is normal for her to react this way, while as a mother, to both the newborn and to her, it is important for you to be fair to both. try and give a little more love and attention to the step-daughter for now. the newborn is too young to understand this, and the time and bonding you create now, especially as there is a newborn, will help to make things better. if nothing helps, mention to your husband that you think the daughter is a little unhappy or sad about the new baby and you want to make sure things are fine for her. don't mention the hitting bit as of now, as he may feel you are complaining, or worse, he may get angry on her, which can worsen the situation.