A prediction .....The A380 will enter service, it will initially fly routes to and from Asia and Europe, then cargo routes around the world (including the USA) and then (eventually) passenger flights to the USA itself. If some US airport improvements are not funded the aircraft will fly to the ones which are, and eventually all the major airports will be forced to improve their facilities. It is called progress. Whether it makes money or not is another matter, but it will happen!
So what if this Mica guy is "Chairman of the House Aviation Subcommittee". We all know how secure such a position is in US politics. Chairman one day, after dinner speeches the next. Ultimately if the President said jump he would ask how high? Just another poodle.
So the real decisions will be made at the top after the various governments involved (EU and US) have battled it out as usual over "protectionism", "subsidies", "open skies" and all the other favourite subjects.
Oh, and the latest variant of the 36-year old Boeing 747 will benefit nicely from the infrastructure improvements around the world introduced for the 380. So plenty of pickings for all concerned.