NASA's budget is less than half of 1% of the USA total budget (2020 figures from Wikipedia). I daresay there are other areas (cough military spending cough) that would benefit from some examination as to where money can be saved through reduction / efficiencies.

BTW I'm not American, but have followed NASA projects for many, many years, and they almost always give me some greater hope for the future of mankind (not to mention admiration for the science and engineering people behind the scenes).