One of my favorite things that presidents do, or used to do, is create national monuments. In 2000 Bill Clinton created the Ironwood Forest National Monument north of Tucson, Arizona. My sister Melanie and her husband Lee run a small store, the Valley Mart, just across the road from this monument. Every winter, if we’re lucky, my family pays a visit over Christmas. My wife Breja and I love to hike this protected landscape. The ironwood is a desert shrub that can live to be a thousand years old.