 So what if the next elected President of the United States doesn't believe that? The best advice I've been given recently by a former senior US official is look at what Mr Trump does, not at what he says. So of course there will be an election, many things have been said, will be said about that. The really key point though here for the UK is to make it very clear what our understanding is of our security, how it fits with the security of our allies.