The federal government is constipated, according to William G. Howell and Terry M. Moe, two of the country’s leading presidential scholars and the authors of "Relic: How Our Constitution Undermines Effective Government and Why We Need a More Powerful Presidency."

Washington is, they argue, unable to act at all in many cases (for example, immigration); prone when it does act to “produce weak, cobbled-together patchwork policies” (Obamacare, the tax code); and uninterested in fixing these policies when they are “shown, through actual experience, to be ineffective” (New Deal farm programs). That’s a common enough description of the ailment that afflicts the body politic. Where Howell and Moe depart from the conventional wisdom is in their diagnosis: not partisan polarization or divided government but the Constitution itself. In their title quote, they write, “The core of the Constitution—separation of powers, with a parochial Congress at its center—…is a relic of the past.” Howell and Moe argue that what makes the Constitution a relic—fine for 1816 when the federal government was small, subordinate to the states, and not expected to do very much,

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