Rob Schenck: Can Trump still count on the religious right?

We cannot know the contents of Donald Trump’s soul, but its fair to say his personal behaviour doesn't point to deeply held Christian belief. And yet the evangelical Christian right is a key pillar of his support base. Could that change in November’s election? Stephen Sackur speaks to Rob Schenck, an influential evangelical pastor and long-time anti-abortion activist who broke with fellow social conservatives over gun control. Can Donald Trump still count on the loyalty of the religious right?