by fiat

Some Republicans want to go even further: A few Republicans in the House and Senate have introduced bills that would abolish D.C.’s local government altogether and allow Congress to rule by fiat over the city.

But the real overreach belongs to the executive, which has assumed the power to rewrite the 14th Amendment by fiat.

Immigration and Customs Enforcement raids, Miller said that the California politicians were attempting "to control America’s entire immigration policy by fiat."

Your point is that rule by fiat is something entirely different, and we are conflating the two.

His Substack, Weekend Reading, has been focused on the role of the Roberts court in deconstructing the New Deal and paving the way for rule by fiat.