We also have no check on that authority they arrogated to themselves. What are you going to do, vote out the heads of the IRS, FBI, ATF, and the dozens of other alphabet soup agencies? The unelected bureaucracy, the administrative state, has all the real power. And they are permanent. That's why they give a middle finger even to Congress. They know Reps and Senators come and go, Presidents come and go, but bureaucrats are there forever.
After the next civil war, and the inevitable purging of tens of millions, among the primary goals is to drive a stake through the heart of this idea of "delegated authority." Bureaucratic agencies should not have the power to promulgate edicts with all the same force as a law enacted by elected representatives.