All levers of the government, as I understand it, are controlled by the President's party. This would seem to suggest that the normal mechanism of passing laws and budgets would be straightforward, eliminating the need to rule by decree. As this does not seem to be happening, it suggests the US government is inoperative with all control ceded legally or otherwise to the executive.
I'm not sure of your understanding of America's government.
Conservatives control all three branches of government to an extent. The Senate GOP doesn't have 60 members, so the Dems can block legislation (the GOP hasn't invoked the "nuclear option" that would prevent that). That's why there's a government shutdown, 100% of that is on the Dems.
The Supreme Court exists only to interpret law in terms of constitutionality. Even with a conservative majority, it shouldn't, and almost certainly won't, violate the Constitution.
As I said above, events leading up to the midterms, and the midterms themselves, will determine the way forward...quite democratically. :-)
How do you figure? Or is the presumption that the GOP compromising by not (further) gutting healthcare subsidies just accepted as wishful thinking at this point?
> almost certainly won't, violate the Constitution
Hence my decree comment.