Could you confirm that the Mayor receives numerous requests from cities across the world for him to visit, and that he only accepts a small minority of those, given pressures on his time?
So if it was the case that the Mayor was in the habit of junketing around the world, this would be a crime committed by many other cities around the world as well?
What factors are taken into account when deciding A. whether a trip abroad is necessary, and if so, B. who should go on the trip and what the objectives and itinerary will be?