Hello, I am happy to assist you today.
If you have 50/50 joint custody here, you have a huge say in what happens with your daughter. I certainly understand that you are concerned that they may take her to the UK and then not return.
Is there any evidence that your ex may want to take your daughter to the UK and not return? This is what the judge will ask you for. If this is just a regular trip, the court will probably be inclined to allow it unless you have some strong evidence that she is intending to not return.
Does your ex have a job in Arizona, a home, etc? If so, that may indicate to the judge that she intends to return.
There is no way to know what the judge will decide, because his or her decision will be based entirely on all of the facts involved, including those that I mentioned above. You do have a large impact on this decision because you are entitled to have your daughter live with you every other week. So if this trip infringes on that visitation
, you can certainly protest. The best you can do is just present the facts to the judge and hope that the court rules in agreement with you.
Let me know if you have any questions.