Breaking: GBP/USD tops out at 1.3285 on optimistic views on backstop amendments

The (very) optimistic view is that if Cox blesses the latest legally-binding Irish backstop deal with unilateral UK declaration, then DUP follows and ERG hardliners splinter - and slowly the parliamentary arithmetic shifts in favour of May.

• GBP/USD rallies between range of 1.3145/1.3288.