DONALD TRUMP must be kicking himself — or more likely, venting his volcanic, spoilt-brat spleen on some bewildered apprentice working on his dreadful campaign: “Why didn’t we think of that, do I always have to do everything around here?” The enraged Trump — as he always is — will ask, referring to the suggestion made by British Home Secretary Amber Rudd that British businesses be obliged to reveal how many foreign workers they employ.