Jan Ebeling of the United States, rides his horse Rafalca during a training session for the equestrian dressage competition at the 2012 Summer Olympics, Wednesday, Aug. 1, 2012, in London. Rafalca is ... more 

Jan Ebeling of the United States, rides his horse Rafalca during a training session for the equestrian dressage competition at the 2012 Summer Olympics, Wednesday, Aug. 1, 2012, in London. Rafalca is co-owned by Ann Romney, the wife of U.S. Republican presidential candidate Mitt Romney. (AP Photo/David Goldman) less