► Read: Trump and Clinton have high hopes for Colorado’s independents. http://on.ft.com/2e90Y9Z<br /><br />Trump wants to bring back coal jobs, but a start-up retraining miners as coders is giving Clinton ideas on how to save the depressed Appalachian economy. Barney Jopson, the FT's US Policy Correspondent, reports from West Virginia and Kentucky.<br /><br />► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br /><br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes