A slight antidote to the aggressive show of security was hearing some classics blaring from where the golf caddies were huddled, including Billy Joel’s Uptown Girl, shortly after Mr Trump teed off at about 10am.

Donald Trump is about to fly into the UK, not on a state visit or diplomatic mission but something that to his mind is almost as important, if not more so. He is visiting the golf courses he owns in Aberdeenshire and at Turnberry on Scotland’s west coast.

President Donald Trump caused a stir with his actions at his Turnberry Golf Club in Scotland on Saturday, appearing to break one of the unwritten rules of the sport