Tax and trade deals are two areas that clearly differentiate the competing candidates.
BBC World Service
Trade and migration at the Texas-Mexico border.
Iolo Williams takes listeners' calls in the wildlife phone-in.
BBC Radio Wales
Un magazine économique de animé par un de nos correspondants
BBC Afrique Radio
Sean Farrington and Louise Cooper talk shale gas, the US election and beer sales.
BBC Radio 5 live
Hillary Clinton and Donald Trump are preparing for their first television debate.