The Queen refuses to come to London to meet President Barack Obama next month. Instead, accompanied by his security circus, he’ll trundle to Windsor in his bomb-proof, seven-ton limo for lunch. He’s due to stand alongside the PM and urge Britain to stay in the EU. ‘But he’d be well advised not to give a pro-EU sermon over lunch after the row about the Queen supporting Brexit,’ says my source. (Photo) Princess Anne will be at Cheltenham today to present the Gold Cup, sprinkling royal stardust on the festival’s incontinent punters. Unlike Ascot, where the Gold Cup was renamed to