WASHINGTON — The immense international consequences of who becomes the next US president can make it seem unfair that only US citizens can vote and the rest of the world doesn't have a say. The United States plays a key role when it comes to Ukraine, the Middle East, China, Taiwan, NATO and the trans- Atlantic alliance. For one thing, Washington - with its $916 billion military budget for 2023 - far outspends both its friends and foes. So what is the likely effect around the world of whether