I suppose technically it does come out of thin air, according to modern monetary theory. And yeah, those congress people would definitely getting a bunch of it back because they own tons of stock those companies that benefit from the aid packages.

They always print money for military spending (Of course, the term "foreign aid" sounds better, but that's a load of shit). But they couldn't even fathom printing a dollar for anybody's college tuition. Not to mention college used to be free (or extremely cheap) in the U$A. But it's been a long time since that was true.