A Texas father is fighting for his son, who identifies as a girl, claiming his ex-wife planned to ''chemically castrate'' him. The case involves a 9-year-old boy who was transferred to California, where a law protecting transgender children is in effect. The father claims that the mother had been trying to ''transition'' his son since he was 2 years old. The court granted the mother full custody, but prohibited hormone therapy without the consent of both parents.