JD Vance’s key role in Iran talks presents him with a thorny predicament

Vice-president faces challenges as he assumes potential role of point man in endeavor to end a war he opposed

As a man who wears his Christian beliefs on his sleeve, JD Vance is no doubt acutely conscious of Jesus Christ's dictum from his sermon on the mount declaring that blessed are the peacemakers".

Yet the US vice-president, a Catholic convert who recently found himself at odds with Pope Leo, is discovering the difficulties of living up to that standard while serving a mercurial political master who is waging a war Vance once cautioned against.