Philippa Thomas and Charlotte Pritchard travel from Los Angeles and the glitz and glamour of Vegas to the edge of the country on the US-Mexican border in Texas. They talk to musicians, gun enthusiasts and cowboys about whether President Obama has delivered all he promised. As well as enthusiasm for the new healthcare reforms and the recovering housing market, they uncover the deep tensions and worries permeating this election year. In the weeks before the 2008 US election, the BBC drove a bus coast to coast across the US asking people about their lives and their hopes and fears for the future. In the four-part series America Revisited we meet some of those same people again to find out why the country seems more divided than ever.