The US presidential election looks as if it’s coming down to the wire in a handful of battleground states. Neither Kamala Harris nor Donald Trump has established a clear lead, and that raises the question of whether, even in today’s increasingly secular America, evangelical Christians could give former president Trump a crucial advantage in the rust belt. On the other hand, could his role in the demise of Roe v Wade tilt the race towards Harris?  In this episode of Holy Smoke, Damian Thompson talks to Dr Melissa Deckman, CEO of the Public Religion Research Institute, a specialist in the influence of religion on US politics, and Justin Webb, presenter of BBC Radio 4’s Today programme, widely respected as an impartial commentator on presidential campaigns.  Produced by Patrick Gibbons.