sentences:  His first graded stakes win did not come until 1996 when he took the Derby Trial at Churchill Downs with Valid Expectations.In 1999, he recorded his first Grade I win in the Mother Goose with Dreams Gallore.Some of Asmussen's top horses came about as a result of his partnership with the late Jess Jackson, a wine entrepreneur who was also a horse owner and breeder; Jackson's racing operation was Stonestreet Stables.