I have been divorced for 6 years. I recently went back to court to get my children half of the time, 50/50 custody. The children, 14 and 8, went to mediation and they want to come to my house every other week. My ex is objecting this so our case is being sent to trial. My question is can I subpoena the kids to act as a witness during the trial? Mainly to tell the judge themselves that they want to come to my house equally.