That's not how any of this works. Read up on separation of powers. Just to take one example...
> the Supreme Court ruled nine to nothing that when Congress directs that money be spent, the president is obliged to do it. [...] Presidents can certainly send recommendations to Congress that funds should be cut. The Impoundment Control Act provides an expedited procedure for having those recommendations considered. But the president simply doesn’t have this unilateral authority.
We’ll see in a year or two how this really works. My view is that there was a coup against the Constitution about 90 years ago and as a result we have decades of judicial Calvinball that need to be sorted through. Just to start with, can you find the part of the Constitution that authorizes NIH and NSF to exist in the first place?
In terms of following the strictures of the Constitution, nothing the administration has done has made things any worse in that regard and in fact, has the potential to make things much better. The bureaucracy has grown into an extraconstitutional (which is to say, unconstitutional) fourth branch of government with separated powers of its own. Destroying that independence and returning executive power to the elected executive is a massive step in the right direction.