The Fourth Amendment protects every person in the United States — citizen or not — from unreasonable searches and seizures. It requires warrants. It protects your home, your car, your phone, and your body. The Trump administration has issued memos, directives, and policy changes that legal experts say are systematically dismantling those protections. This page explains exactly what the Amendment says, exactly what the administration is doing, and exactly what your rights are right now.
Each of the following involves a documented policy, memo, or directive — not speculation. All are sourced to primary reporting, court decisions, and official government documents.
What happened: In May 2025, ICE Acting Director Todd Lyons signed an internal memo reversing decades of agency policy. The memo states that ICE officers may forcibly enter homes using only an administrative warrant — a warrant signed by ICE itself, not a judge — to arrest people with final removal orders. The memo was kept secret. Agents who knew about it were shown it verbally or in supervised settings and prohibited from keeping copies. It became public only in January 2026 when two whistleblowers filed a complaint with Congress.
The legal distinction that matters: There are two kinds of warrants. A judicial warrant is signed by a neutral judge after reviewing evidence of probable cause — this is what the Fourth Amendment requires for home entry. An administrative warrant is signed by an executive branch official (in this case, ICE itself) and has historically not been sufficient to enter a home without consent. The administration is now claiming the administrative warrant is enough.
What courts have said:A federal judge in Chicago ordered over 600 people released from immigration detention after finding ICE agents made warrantless arrests without probable cause. The Brennan Center for Justice has published a detailed legal analysis finding the memo violates the Fourth Amendment’s core requirement that home entry requires judicial authorization.
What’s happening:CBP agents are searching phones, laptops, and tablets at ports of entry without warrants, without suspicion, and without limitations on what they can look at. In FY 2025, CBP conducted 55,318 device searches — a 16.7% spike compared to two years prior. “Advanced” searches use forensic software that extracts everything: deleted files, app data, location history, passwords. These have happened to US citizens, green card holders, visa holders, and tourists.
The social media angle: CBP has proposed requiring visitors from visa-waiver countries to provide five years of social media history before entering the US. French scientists have been denied entry after agents found messages criticizing Trump administration science funding cuts. Immigration attorneys are now advising clients to clear their phones before crossing any border.
What’s happening:Under the second Trump administration, vehicle stops have become routine — cars pulled over in the middle of streets based on occupants’ appearance. CBP’s enforcement radius extends 100 miles from any US border, which includes most major American cities: New York, Los Angeles, Chicago, Houston, Miami, Seattle, Detroit. Within this zone, agents have expanded authority to stop vehicles without the normal Fourth Amendment requirement of individualized suspicion.
The Kavanaugh problem:In a 2024 Supreme Court case, Justice Brett Kavanaugh wrote a concurrence that immigration advocates say blesses racial profiling as a factor in immigration stops. Legal experts describe stops motivated by racial profiling as violating the Fourth Amendment’s protection against unreasonable seizures — but with this concurrence, some courts may allow them.
Document everything. Call immediately. You have 6 hours in many jurisdictions to preserve evidence.