The Obama administration did provide two great example of the legislature ceding power, the Consumer Finance Protection Bureau, gifted with broad regulatory powers, zero accountability to citizens, and even their funding is out of the control of congress. BTW, that’s probably unconstitutional. Another is the so called death panel (the IPAB) written into the ACA. The members cannot be removed even by the president, and they must annually write ACA budget allocations which automatically become law unless congress passes a bill to override their “recommendations” within 90 days.

Even with all that, I don’t think anyone ever granted the president the power to order the execution by drone of an American citizen who had never been charged much less convicted of a crime. And that doesn’t include the separate execution Obama ordered of that man’s minor son.