President Trump is in Phoenix, Arizona for a rally where he'll try to score points on immigration and his plans for a border wall. But it turns out hiring border guards is getting harder. On today's show, we'll take a look at some of the reasons for their decline . Afterwards, we'll discuss how consumers have responded to advances in smartphones, and then talk about what could lie on the agenda for Jackson Hole, a meeting between central bankers and policy experts that begins today.