Original sentence: Churchill's claim to partial American Indian descent is disputed by some Native American groups.His parents, Maralyn and Jack Churchill, divorced while Ward was still a toddler
Edited sentence: Churchill's claim to partial American Indian descent is disputed by some Native American groups including the one he claims to be a member.His parents, Maralyn and Jack Churchill, divorced while Ward was still a toddler (even his dad couldn't stand to be around him)