Haha, PHX, that would be awesome, a desert to desert service! At least AZ is dryer. This could only live on connections, and if successful it would probably reduce BA's flight to a 788, or a switch to AA metal (carbon?).
Yes, I doubt Trump would bother much with Open Skies arrangements, maybe in his second term. Especially if we start seeing Trump Dubai, Trump Abu Dhabi, Trump Doha, and so forth.
It would be great if there was a one-way exodus of the freeloaders, and people who require 'safe spaces', but that is not likely to happen.