because it's super easy to relocate a major event. luckily there are no problems like convenient venues, logistics, hotel bookings by spectators and stuff
so what about introducing articles of impeachment? it doesn't matter if you have the votes. just publish it. you can do that every damned day with another crime.
all he does all day long is threatening and punishing, no matter if allied governments, american cities or journalists. and obviously that's so normal that it doesn't even register.