Astronomy

In practice, you're probably right.

But in terms of "I wanna cut waste, and make the government lean! So I am gonna delete the space part of the government and replace it with my own!"

Just sounds bad, like really bad. Even worse than the armored Teslas. I can't imagine NASA is the top of people's lists of "utter wastes of time" It's not a regulator, it's not in the "known enemies" list unless you're a flat earther. I dunno how you spin it to be palatable.