And so it’s likely to go for the next four years. All modern presidents have used the administrative state and presidential executive orders to pursue their agenda. Biden can do a lot with his pen, and much of what he does will unravel Trump’s own legacy of using executive powers, largely as a deregulator. Biden promises to be a re-regulator, reimposing many of the mandates that the Obama administration originally engineered in areas as diverse as the environment, the workplace, unions, and immigration.