For decades, conservatives have focused on the Commerce Clause, the administrative state, and federal overreach. But they've overlooked the constitutional change that made it all possible: the Seventeenth Amendment, ratified in 1913, which replaced state legislative election of U.S. senators with direct popular vote. It wasn't a minor procedural tweak; it was the removal of the one institutional check the Founders built to prevent the federal government from consuming the states.
Article I, Section 3 originally required senators to be chosen by state legislatures, not by statewide popular vote. This wasn't a compromise forced by political circumstances. It was a deliberate structural answer to a specific problem: how to build a federal government strong enough to function while preventing it from swallowing the states that created it. As Federalist No. 62, attributed to James Madison, makes clear, the Senate gave state governments “such an agency in the formation of the federal government as must secure the authority of the former.” The House answered to the people; the Senate answered to the states. That distinction was the structural check, allowing state interests to be represented in the body that writes federal law.
The 17th Amendment disrupted that balance. State legislative elections had real problems: deadlocks left Senate seats vacant for months, and corruption was rampant. The most notable case involved William Lorimer of Illinois, elected to the Senate in 1909 and expelled in 1912 after the Senate determined that bribery of state legislators had been used. The Progressive Era seized on this crisis, presenting direct election as a reform against corruption. But what reformers downplayed was the structural consequence: when senators no longer answered to state legislatures, state governments lost their institutional voice in federal lawmaking.
The timing is telling. The income tax amendment was ratified on February 3, 1913; the Seventeenth Amendment came two months later; the Federal Reserve Act passed in December 1913. Before 1913, state governments had a structural claim on senators who voted on legislation affecting state authority. After 1913, they had only political arguments—far less effective than structural protection. The New Deal-era Commerce Clause cases, particularly Wickard v. Filburn (1942), which upheld federal regulation of wheat a farmer grew and consumed on his own farm, would have faced a different Senate if that Senate still answered to state legislatures with a direct institutional stake in the limits of federal power.
The Rehnquist Court's partial federalism revival in U.S. v. Lopez (1995) and U.S. v. Morrison (2000), and the Roberts Court's holding in NFIB v. Sebelius (2012), represent the judiciary doing structural work the Senate was designed to handle. The Founders built a Senate that wouldn't need five justices to protect federalism. A senator who answered to a state legislature had constituents who ran state agencies, administered state courts, enforced state law, and had professional reasons to resist federal encroachment. That institutional perspective has no equivalent in a Senate elected by popular vote. State legislators now lobby senators from the outside, like any other interest group. The Founders wanted them inside.
The Convention of States movement and scholars like Todd Zywicki at George Mason's Antonin Scalia Law School understand this. Twenty states have passed resolutions to hold such a convention—still 14 short of the 34 needed. No repeal of the 17th Amendment has come close to a floor vote in either chamber. Both parties have adapted: Democrats built the administrative state the amendment made possible; Republicans have used it. The 17th Amendment didn't start the federal expansion of the past century, but it cleared the institutional space that made it possible. We amended away that structural protection in the same year we gave Congress the income tax and created the Federal Reserve. Most Americans couldn't tell you a thing about it.
This structural shift has real-world implications. For instance, a federal worker NDA proposal currently drawing fire from unions and free speech advocates highlights how federal authority expands without state checks. Similarly, the ongoing IDEA funding gap shows how federal promises to states go unfulfilled, a dynamic that might look different if senators still answered to state legislatures. The 17th Amendment's legacy is a federal government that can act without a structural brake from the states.
