President Donald Trump has once again raised alarms about possibly invoking the Insurrection Act, telling reporters this week that he could use the sweeping presidential powers it grants “if necessary” to restore order in U.S. cities. “It’s been invoked before,” Trump said Tuesday. “We want safe cities.”
Trump has often floated the idea of using the act, though he never did during his first term. White House spokeswoman Abigail Jackson defended his stance, saying the president has “exercised his lawful authority to protect federal officers and assets” and “will not turn a blind eye to the lawlessness plaguing American cities.”
The Insurrection Act, signed into law by President Thomas Jefferson in 1807, gives the president authority to deploy the military within U.S. borders or federalize the National Guard during times of rebellion, violence, or when the enforcement of federal law becomes impossible by normal means. It stands as one of the few exceptions to the Posse Comitatus Act of 1878, which generally bars the use of military forces for domestic law enforcement without congressional approval.
The act has been invoked multiple times throughout American history — from George Washington’s response to the Whiskey Rebellion in 1792 to President George H.W. Bush’s deployment of troops during the 1992 Los Angeles riots. However, it hasn’t been used in over three decades.
Critics and legal experts have long warned about the vague and expansive powers the law grants. It allows the president to determine what constitutes an “insurrection” or “rebellion” and when to act. A 2022 Brennan Center for Justice review described the act’s language as “so bafflingly broad” that it could theoretically allow a president to use the military against “any two people conspiring to break federal law.”
Trump has indicated a low threshold for what he considers insurrection, citing unrest and crime in cities like Portland as examples. “Portland is on fire. Portland’s been on fire for years,” Trump said Monday. “That’s all insurrection, really criminal insurrection.” Later that day, he told Newsmax the situation amounted to “pure insurrection.”
Still, Trump insisted he hasn’t yet seen a situation that meets his standard for invoking the law. “So far it hasn’t been necessary,” he said. “But we have an Insurrection Act for a reason. If people were being killed and courts or governors were holding us up, sure, I’d do that. I want to make sure that people aren’t killed.”
The Insurrection Act would give the military the ability to perform law enforcement functions — including making arrests and conducting searches — powers that civilian law enforcement agencies typically handle. This marks a significant expansion of executive authority and a potential blurring of lines between civilian and military power.
That distinction was at the center of a recent federal court case. U.S. District Judge Charles Breyer ruled that Trump’s previous use of armed soldiers and Marines during immigration-related protests in Los Angeles violated the Posse Comitatus Act. Breyer wrote, “Defendants systematically used armed soldiers (whose identity was often obscured by protective armor) and military vehicles to set up protective perimeters, engage in crowd control, and otherwise demonstrate a military presence.”
He concluded bluntly: “In short, Defendants violated the Posse Comitatus Act.” The administration has appealed the ruling, and the appeals court has placed it on hold while proceedings continue.
For Trump’s critics, his renewed discussion of the Insurrection Act underscores fears about how a future administration might interpret and wield its powers. For supporters, it signals a willingness to take strong action against what they see as rising lawlessness.
Either way, Trump’s remarks have reignited an ongoing national debate over the balance between law enforcement, civil liberties, and presidential power — and whether the Insurrection Act’s centuries-old authority still fits a modern democracy.
