When it comes to the worst laws in American history, some statutes have left a scar on the nation’s fabric. From tariffs that deepened a depression to acts that trampled civil liberties, this roundup dives into the ten most infamous pieces of legislation.
What Makes a Law One of the Worst Laws?
Legislation earns the “worst” label when it causes widespread harm, curtails fundamental rights, or triggers unintended consequences that echo for generations. Below, each law fits that bill in a uniquely troubling way.
10 Hawley Tariff Act
The Smoot‑Hawley Tariff Act, formally the Tariff Act of 1930, was billed as a shield for American farmers and manufacturers during the early days of the Great Depression. It slapped tariffs on more than 20,000 imported items, some as high as 20 percent.
More than a thousand economists signed a petition urging President Herbert Hoover to veto the bill, warning that higher duties would choke trade. Hoover, however, kept his promise to raise agricultural tariffs and signed it into law.
With the stock market already in free‑fall, the act did not protect the economy; instead, it pushed the United States and its trading partners down a steeper cliff. The result was a global contraction in commerce that many historians cite as a catalyst for the worldwide Great Depression.
J.P. Morgan partner Thomas Lamont later observed that the act “intensified nationalism all over the world.” Some scholars even argue that the economic turmoil it helped create paved the way for Adolf Hitler’s rise to power.
9 Espionage Act and Sedition Act
The Espionage Act of 1917 and its companion, the Sedition Act of 1918, emerged shortly after the United States entered World War I. The Espionage Act was a compromise between America’s relatively free speech tradition and Britain’s strict wartime censorship, criminalizing the transmission of information that could aid the enemy.
The Sedition Act broadened that scope, making it a crime to utter false statements that could hinder the war effort, to sabotage war‑related manufacturing, or even to insult the flag, the Constitution, the government, or the military. Defending such speech was also punishable.
During the first Red Scare, Attorney General A. Mitchell Palmer and his deputy J. Edgar Hoover wielded these statutes with gusto, imprisoning dissenters and silencing critics. The Sedition Act was later repealed, but large portions of the Espionage Act remain on the books today.
8 Alien Registration Act of 1940 (aka Smith Act)
As World II loomed, lawmakers feared subversive elements could undermine the nation from within. The Alien Registration Act of 1940—better known as the Smith Act—made it a crime to advocate for the overthrow of the government or to belong to an organization whose primary goal was to topple it.
All non‑citizens residing in the United States were required to register, submit fingerprints, carry identification at all times, and report their living arrangements annually.
Even a loose association with a “subversive organization” could trigger deportation. Although the act has never been fully repealed, it has been amended several times after courts deemed some of its applications unconstitutional.
7 Gulf of Tonkin Resolution
The Gulf of Tonkin Resolution of 1964 became a template for presidents seeking broad war‑making powers without a formal congressional declaration. After two alleged attacks on U.S. ships by North Vietnamese forces—later shown to be largely misrepresented—President Lyndon B. Johnson asked Congress for sweeping authority to protect American interests in Southeast Asia.
The resolution passed almost unanimously, granting the president the ability to wage war with minimal oversight. It was eventually repealed in 1971 as President Richard Nixon pursued further escalation in Cambodia.
Subsequent investigations revealed that the intelligence presented to Congress was inaccurate, providing a cautionary tale echoed in later conflicts such as the Iraq War.
6 Patriot Act
Enacted weeks after the September 11 attacks, the Patriot Act was marketed as a tool to detect and thwart terrorism. In practice, it granted the government sweeping surveillance powers that intruded on the privacy of virtually every American.
In 2015, the FBI’s own inspector general asked the agency to point to a single major terrorism case solved thanks to the Patriot Act; the answer was none.
Instead, the act paved the way for programs like the NSA’s phone‑metadata collection, which claimed to uncover links between suspected terrorists and broader networks. While some overreaches have been curbed, many of the act’s provisions remain in effect, continuing to shape domestic and international surveillance.
5 Fugitive Slave Act of 1850
By the 1830s, abolitionists in the North were gaining momentum, unnerving Southern slaveholders. The original Fugitive Slave Act allowed local authorities to capture runaway slaves and return them to their owners, but Southerners felt it didn’t go far enough.
As part of the Compromise of 1850, Congress passed a harsher Fugitive Slave Act that forced ordinary citizens to assist in the capture of escaped slaves. Refusal or aid could result in a $1,000 fine and six months in jail, and the act stripped slaves of the right to a jury trial.
The law remained in effect until the Civil War, finally being repealed in 1864 as the nation moved toward emancipation.
4 Black Codes
In the immediate aftermath of the Civil War, Southern states enacted the Black Codes (1865‑66), precursors to the later Jim Crow laws. While formerly enslaved people technically enjoyed freedom, the codes shackled them with oppressive labor contracts and criminalized vagrancy.
Under the codes, Black citizens were required to sign yearly labor contracts; failure to do so could result in arrest and forced labor without pay. The statutes also barred Black people from serving on juries and severely limited their freedom of movement.
President Andrew Johnson, a Southern Democrat, defended states’ rights to treat Black citizens as they saw fit, provided they were not enslaved. It was not until the Radical Reconstruction era, when Republicans passed the Civil Rights Act of 1866, that these draconian measures began to be dismantled.
3 Alien and Sedition Acts
In 1798, amid fears of a French invasion, Congress passed the Alien and Sedition Acts. The legislation granted the government expansive powers to deport non‑citizens deemed dangerous and to silence dissent.
One congressman warned that the nation should not “invite hordes of Wild Irishmen, nor the turbulent and disorderly of all the world, to come here with a basic view to distract our tranquility.” The Acts also criminalized publishing false statements about the government, effectively curbing First Amendment protections.
Although no foreigners were actually deported under the law, ten individuals were convicted under the Sedition Act. Most of the provisions were repealed a few years later as the perceived French threat faded.
2 Indian Removal Act
President Andrew Jackson, a fierce proponent of “Indian removal,” championed the Indian Removal Act of 1830. The law authorized the federal government to seize Native American lands east of the Mississippi River and relocate tribes to territories west of the river.
Although the statute required the government to negotiate with tribes without resorting to violence, those provisions were often ignored. The resulting forced migrations—most famously the Trail of Tears—saw thousands of Native Americans die from exposure, disease, and starvation.
For example, roughly 2,500 of the 15,000 Choctaw who were relocated perished during the journey. Jackson defended the policy as a “wise and humane” solution to save Native peoples from extinction, a claim starkly at odds with the human cost.
1 Public Law 503
Following the attack on Pearl Harbor, President Franklin Roosevelt issued Executive Order 9066, granting the military authority to detain anyone deemed a threat to national security. To cement this power, Congress passed Public Law 503, which authorized the mass internment of over 127,000 Japanese‑American citizens during the 1940s.
The policy was rooted in the erroneous belief that Japanese‑Americans would inevitably side with Japan if the United States were invaded. Two‑thirds of those interned were native‑born citizens who had never set foot in Japan.
Although the Supreme Court upheld the law at the time, it was later challenged and widely condemned. Many former internees could not immediately return home after the war, and some cities even posted signs declaring them unwelcome. It was not until 1988 that Congress offered a formal apology and $20,000 reparations to surviving internees.