If he is causing this type of disharmony with the children and is not fostering a healthy relationship with you as the other parent, this is grounds to actually move the court for at least supervised visitation
to prevent him from making such disparaging comments about you. You would have to do this by filing a motion to the court to modify visitation. You would also need to support this motion by taking them to a therapist to get to the root cause of this new behavior so the therapist can testify as to how these comments from him are hurting the children. Parental alienation's effects are quite real, but I am afraid that the courts do not recognize parental alienation syndrome as a legitimate syndrome, which is why you need to argue that he is not fostering a healthy parental relationship with the other parent and have a therapist testify to the bad effects of his conduct with the children.
I truly aim to please you as a customer, but please keep in mind that I do not know what you already know or don't know, or with what you need help, unless you tell me. Please consider that I am answering the question or question that is posed in your posting based upon my reading of your post and sometimes misunderstandings can occur. If I did not answer the question you thought you were asking, please respond with the specific question you wanted answered.
If you did not get all of the information you may have wanted PLEASE USE THE REPLY TO EXPERT LINK IF YOU HAVE FOLLOW UP QUESTIONS AND NOT THE FEEDBACK BUTTON FOR BAD SERVICE. PLEASE CLICK ON “OK,” “GOOD” or “EXCELLENT” SERVICE. Kindly remember to ONLY rate my answer when you are fully satisfied. If you feel the need to rate anything less than OK, please stop and reply to me via the or REPLY TO EXPERT button with whatever issue or clarification you may need.
Also remember, sometimes the law does not support what we want it to support, but that is not the fault of the person answering the question, so please be courteous.
PLEASE NOTE WELL WE ARE DEALING WITH LAWS OF 50 STATES PLUS FEDERAL LAWS, AS WELL AS DEALING WITH OTHER CUSTOMERS, SO PLEASE BE PATIENT AND BE ASSURED YOU ARE NOT BEING IGNORED.
There can also be a delay of an hour or more in between my answers because I may be helping other customers or taking a break.
You can always request me through my profile at http://www.justanswer.com/law/expert-paulmjd/ or beginning your question with “For PaulMJD…”