By BAGEHOT
THE American president touched down in London last night for a three-day goto. Officially his journey has to do with wanting the queen a delighted 90th birthday. In practice it is a thoroughly worded quote to push British citizens towards a Remain vote in the EU referendum on June 23rd. His lobbying started this earlymorning with a column in the Daily Telegraph (seemingly selected for being the most high-brow Eurosceptic outlet) under the heading: “As your buddy, let m