Re: How many Shuttles could have been kept operative..
"The current 'NAFTA replacement' agreement is supposed to be a part of that."
Assuming that passes as-is with no further changes, how much will that actually contribute to the Treasury? Unless there are some planned tarrifs on imports without equivalent tariffs imposed by Mexico in the other direction, then the answer is "none". If Trump has successfully bullied Mexico into being on the losing side of the deal, then US businesses will reap the extra profits. And we all know how well the US tax system works, especially when the Republicans like to give tax breaks to the rich business friends.
Wool, meet eyes.