DEREK Mackay might want to ask Santa for a diet plan, judging by the lobbying register. With the Scottish budget nigh, the finance secretary is being wined and dined hard. Over just two days last month, Baillie Gifford got him lunch in a restaurant near his office to mull “the competitiveness of Scottish taxation policy”, and Edinburgh Airport took him to dinner at the Michelin-starred Kitchin in Leith to nag him about cutting Air Departure Tax. It’s a tough life. . https://www.heraldscotland.com/news/17284372.unspun-the-political-diary/