What do you do when your husband treats the kids differently?

do you have kids by previous marriage,etc.?well,it's hard to step in a marriage like that period.because the child knows who his biological parents are.if your hubby won't let you step in then you and him either get help,therapy or parenting cles or you yourself step out.this son of his has a spoiled behavior.he thinks cause he the oldest hes like the one in charge.maybe take time out with him.find out why he likes being mean.you and hubby needs to sit down with the child together and have a talk about respecting you and the other lil ones.whats it seems to be the case he is overdue for a .but now adays we cant the child.your step son is acting out cause he thinks he can.if he was to know he cant then things be easier.i if i were you i wouldnt buy him a thing.i wouldnt try a give him what he wants just so he think he got you in his corner.theres ways that you can get a child to show respect.you just got to let him know who's the boss.divorced parents kids are much harder to deal with cause they get treated like there so special.his dad and mom just not disciplining him right.thats the problem.