...that even if Trump were to leave the Presidency, through impeachment or medical reasons, these budget cuts would continue.
They do not represent just his aberrations, but a primary characteristic of the political philosophy which created him.

These cuts are motivated by a disdain for commercially useless science and research in general, which makes cuts in these areas (along with social welfare spending) simply a new and productive revenue source. But there is a specific payoff in gutting the hated environmental sciences, particularly those which maintain public interest in the environment (particularly AGW) which threatens commercial activity through regulation, taxation and potentially encouraging an economy based on renewable resources and reduced resource consumption.

I think there is also a growing realization among the financial elites that the damage generated by pollution and other man-made environmental degradation will open up lucrative new business opportunities for them. Any bad effects will be of little concern for those with the financial resources to adjust to them. They won't need to believe their own propaganda about the environment because they'll feel perfectly equipped to survive whatever happens to it. In fact, they intend to profit from it.

This creates an environment where the dismissal of environmental concerns will be felt as good for business. Even if they do not personally articulate it this way, or even think of it in those specific terms, the resulting conditions will select for, in a Darwinian sense, even more policies and strategies which will tend to make the situation worse.

The Trump Presidency and Conservative legacy will be profound. It might even affect the fossil and geological record. In the far future, when no historical evidence may survive, geologists will still be able to see abrupt changes in the strata when the earth suffered a great catastrophe. They will see evidence of mass extinctions and climate change, alterations in erosion and deposition, sea level changes, alterations in sea and atmospheric chemistry, and the like. Even after all artifacts and evidence of our works vanish, the earth will still bear the scars left by our presence.

Normally, I might resist the urge to engage in a political rant on Science/Space. But this election may well have consequences on a geological scale, extending into Deep Time. Mankind has become a geological force, an Era all its own.

"...research that drew the ire of Republicans in Congress." Wow.

Well, Zoners, you can kiss the exploration and colonization of the solar system, and the leap into interstellar space, goodbye. I hope you enjoy your tax cut.