The US ‘pro-life’ movement has gained ground in recent years, with courts overturning women’s right to an abortion and questioning the legality of IVF fertility treatments. The question at the heart of the debate is when does life begin? ‘Pro-life’ has become synonymous with evangelical Christianity - often considered a powerful voting bloc in America. But how united are Christian preachers? And what does this tell us about the upcoming election? Ellie House reports from the divided churches in the swing state of Michigan.