During the chaos of last week's tariff war-induced market turmoil, Donald Trump issued an executive order headed: "Maintaining Acceptable Water Pressure in Showerheads." Like a lot of people, I thought this was a joke until I read this piece in Bloomberg by Noah Feldman identifying it as another power grab. It's not really about showers, wrote Feldman, but an attempt to gut the Administrative Procedure Act (APA) of 1946, which is currently being used by federal courts to block Trump's unlawful actions. What is the Mar-a-Lago Accord? Photo shows An aerial photograph shows a sprawling mix of pink and beige…