I Have A Horse That Fights Aggressively With Other Horses. What Can I Do To Fix This?

Jessica asks, “I have a horse that lately is out to get my other horse, plus other horses at times (not during feeding, just all the time). They used to get along very well. It seems as if they switched who is the dominant horse. Is there a way to fix this? Also, could it be a stage they grow out of?” Get more horse training at http://carsonjames.comSupport the Show.