What Is a National Emergency
A national emergency is a formal declaration by the president that switches on special powers Congress wrote into specific laws. It is made under the National Emergencies Act of 1976, and it must be published and reported to Congress. The powers come from those underlying laws, not from the declaration itself, so it is not a blank check.
A switch, not a blank check. A national emergency turns on powers Congress already wrote into law. It does not create new powers, and it cannot override the Constitution.
Key facts
- A president’s declaration can unlock 137 powers written into federal law (Brennan Center).
- 52 national emergencies were in effect on September 16, 2026. The oldest dates to 1979 (Brennan Center).
- Trump declared 12 new emergencies from January 2025 to August 2026, about 7 a year, the fastest pace on record (Brennan Center list).
- On February 20, 2026, the Supreme Court ruled 6-3 that the main emergency law does not authorize tariffs (Supreme Court).
- Ending an emergency the president wants to keep takes a two-thirds vote in both chambers. It has never happened.
The word “emergency” suggests a sudden crisis, like a hurricane or an attack. In law, it is a trigger. Once pulled, it stays in effect until the president ends it or Congress overrides it, and most are renewed every year without a vote.
Where Emergency Powers Stand Now
The biggest emergency-powers fight of the decade ended in court, not in Congress. Here is where things stand.
Where emergency powers stand, checked September 24, 2026
- Tariffs (final): the Supreme Court struck down the emergency tariffs on February 20, 2026. The White House ended them the same day by executive order (Federal Register).
- Refunds (in progress): by September 11, 2026, Customs had sent about $122 billion in tariff refunds to the Treasury for payment (GHY International, citing CBP).
- The emergencies (still active): the trade-deficit emergency behind the tariffs was renewed on March 24, 2026, so the declaration outlived its tariffs (Brennan Center list).
- Newest emergency (agency action): on August 26, 2026, Trump declared an emergency over foreign-made equipment in the power grid. It lets the Energy Secretary block certain purchases and imports (Federal Register).
- Reform (proposal): the ARTICLE ONE Act was reintroduced in the House on August 20, 2026. It would end any emergency after 30 days unless Congress approves it (Rep. Steve Cohen).
Can a President Extend His Term
No. A national emergency cannot extend a president’s term, cancel an election, or suspend the Constitution. This is the most common myth about emergency powers, and the answer does not change however serious the emergency is.
Emergency powers come from ordinary laws, and no ordinary law can override the Constitution. The 20th Amendment ends each presidential term at noon on January 20. The 22nd Amendment limits a president to two terms. Changing either would take a constitutional amendment, which needs two-thirds of both houses and ratification by 38 states.
The same goes for the November 2026 midterms. Congress set the date by law as the Tuesday after the first Monday in November (2 U.S.C. § 7), and the states run the voting. None of the 137 emergency powers lets a president move that date or take over the count.
What a President Can and Cannot Do
A national emergency unlocks specific tools, and each one was written for a purpose. None of them rewrites the Constitution or the laws Congress passed.
The right-hand column is not theory. When presidents have reached past those limits, courts have pushed back, in 2020 on the border wall money and in 2026 on the tariffs.
National Emergency vs. State of Emergency
A “state of emergency” on the local news is usually a governor’s order, not a national emergency. Four different declarations share the word, and each runs on a different law with a different clock.
The federal rules come from the Stafford Act and the Public Health Service Act. The National Conference of State Legislatures tracks how each state oversees its governor’s emergency powers. A governor’s order can close roads or move the National Guard inside that state. It cannot switch on the federal powers on this page.
Emergency Powers Law Since 1976
Congress wrote rules for emergencies in 1976, and the check it built has weakened ever since. The timeline runs from that law to the 2026 tariff ruling.
- National Emergencies Act passed Congress requires public declarations and yearly renewals and gives itself a way to end emergencies.
- IEEPA grants economic powers A new law lets the president impose sanctions and freeze assets during an emergency.
- Supreme Court weakens the check INS v. Chadha strikes the legislative veto, so ending an emergency now needs a veto-proof vote.
- Veto keeps border emergency alive Both chambers vote to end it. Trump vetoes, and the House falls 38 votes short of an override.
- Tariffs imposed by emergency The trade-deficit emergency is used to impose sweeping tariffs under IEEPA.
- Senate votes to end tariff emergencies The Senate passes resolutions on Canada and global tariffs. The House had switched off its own voting clock.
- Supreme Court strikes the tariffs The Court rules 6-3 that IEEPA does not authorize tariffs. The White House ends them the same day.
Sources: Congressional Research Service; Congress.gov; Supreme Court; National Taxpayers Union.
Emergency powers law, 1976 to 2026: 1976: National Emergencies Act passed (Congress requires public declarations and yearly renewals and gives itself a way to end emergencies.). 1977: IEEPA grants economic powers (A new law lets the president impose sanctions and freeze assets during an emergency.). 1983: Supreme Court weakens the check (INS v. Chadha strikes the legislative veto, so ending an emergency now needs a veto-proof vote.). 2019: Veto keeps border emergency alive (Both chambers vote to end it. Trump vetoes, and the House falls 38 votes short of an override.). Apr 2025: Tariffs imposed by emergency (The trade-deficit emergency is used to impose sweeping tariffs under IEEPA.). Oct 2025: Senate votes to end tariff emergencies (The Senate passes resolutions on Canada and global tariffs. The House had switched off its own voting clock.). Feb 2026: Supreme Court strikes the tariffs (The Court rules 6-3 that IEEPA does not authorize tariffs. The White House ends them the same day.).
1976: A Senate committee had found four emergencies still legally in force, from the 1933 banking crisis, the 1950 Korean War, the 1970 postal strike, and 1971. It also counted some 470 provisions of federal law that gave the executive extra power in an emergency (Congressional Research Service). The National Emergencies Act ended the old emergencies. It required presidents to declare new ones in public and renew them every year, and it let Congress end them.
1977: The International Emergency Economic Powers Act, known as IEEPA, gave the president economic emergency powers, mainly to impose sanctions and freeze foreign assets. The 1971 emergency had been used for a temporary import surcharge. From 1977 until 2025, no president used IEEPA to impose tariffs.
1983: In INS v. Chadha, the Supreme Court struck down the “legislative veto,” which had let Congress end an emergency by a simple majority in both chambers. After Chadha, ending an emergency takes a joint resolution the president can veto, so it needs two-thirds of each chamber to stick.
2019: Trump declared a border emergency and redirected about $3.6 billion in military construction money to a border wall after Congress declined to fund it. The House voted 245-182 to end the emergency, and the Senate agreed 59-41. Trump vetoed the resolution, and the House override vote of 248-181 fell short of two-thirds (GovInfo). A federal appeals court later ruled the diversion unlawful.
April 2025: On April 2, 2025, Trump used IEEPA to impose sweeping tariffs by declaring an emergency over the trade deficit. The Court of International Trade ruled on May 28, 2025 that IEEPA does not authorize them, and the Federal Circuit agreed on August 29, 2025 (Federal Circuit).
October 2025: The Senate voted 50-46 to end the Canada tariff emergency and 51-47 to end the global tariff emergency (Senate roll call). The House never took them up. Its leaders had passed rules declaring that the National Emergencies Act’s voting deadlines did not apply, which ran through January 31, 2026 (National Taxpayers Union). Once they lapsed, the House voted 219-211 on February 11, 2026 to end the Canada emergency (House roll call).
February 2026: In Learning Resources v. Trump, the Supreme Court ruled 6-3 that IEEPA’s power to “regulate” imports does not include tariffs. The White House ended the IEEPA tariffs that day. Refunds are still being paid, and about $122 billion had gone to the Treasury for payment by September 11, 2026.
Each step moved power in one direction. The 1976 law was meant to keep emergencies short and answerable to Congress. Chadha took away the easy way to end one, and in 2025 the courts did the work Congress could not.
How Many Emergencies Are Active
The country is almost never out of a national emergency. 52 were in effect on September 16, 2026, and 49 of them run on IEEPA, mostly to keep sanctions programs going.
- 52
- national emergencies in effect on September 16, 2026
- 1979
- year of the oldest still in force, the Iran emergency
- 137
- powers in federal law a president’s declaration can unlock
- 12
- new emergencies declared from January 2025 to August 2026
6 of today’s emergencies were declared before 2000, and 15 before 2010. Each bar runs from the day an emergency was declared to September 16, 2026. None of them has ended.
| Item | Began | Ended | Length |
|---|---|---|---|
| Iran government property | November 14, 1979 | Still in effect on September 16, 2026 | 46 years |
| Weapons of mass destruction | November 14, 1994 | Still in effect on September 16, 2026 | 31 years |
| Iran oil development | March 15, 1995 | Still in effect on September 16, 2026 | 31 years |
| Narcotics traffickers | October 21, 1995 | Still in effect on September 16, 2026 | 30 years |
| Ships near Cuba | March 1, 1996 | Still in effect on September 16, 2026 | 30 years |
| Sudan | November 3, 1997 | Still in effect on September 16, 2026 | 28 years |
| Western Balkans | June 26, 2001 | Still in effect on September 16, 2026 | 25 years |
| Export controls | August 17, 2001 | Still in effect on September 16, 2026 | 25 years |
| September 11 attacks | September 14, 2001 | Still in effect on September 16, 2026 | 25 years |
| Terrorist financing | September 23, 2001 | Still in effect on September 16, 2026 | 24 years |
| Iraq development fund | May 22, 2003 | Still in effect on September 16, 2026 | 23 years |
| Belarus | June 16, 2006 | Still in effect on September 16, 2026 | 20 years |
| Congo (DRC) | October 27, 2006 | Still in effect on September 16, 2026 | 19 years |
| Lebanon | August 1, 2007 | Still in effect on September 16, 2026 | 19 years |
| North Korea | June 26, 2008 | Still in effect on September 16, 2026 | 18 years |
| Somalia | April 12, 2010 | Still in effect on September 16, 2026 | 16 years |
| Libya | February 25, 2011 | Still in effect on September 16, 2026 | 15 years |
| Transnational crime groups | July 24, 2011 | Still in effect on September 16, 2026 | 15 years |
| Yemen | May 16, 2012 | Still in effect on September 16, 2026 | 14 years |
| Ukraine | March 6, 2014 | Still in effect on September 16, 2026 | 12 years |
| South Sudan | April 3, 2014 | Still in effect on September 16, 2026 | 12 years |
| Central African Republic | May 12, 2014 | Still in effect on September 16, 2026 | 12 years |
| Venezuela | March 8, 2015 | Still in effect on September 16, 2026 | 11 years |
| Malicious cyber activity | April 1, 2015 | Still in effect on September 16, 2026 | 11 years |
| Human rights and corruption | December 20, 2017 | Still in effect on September 16, 2026 | 8 years |
| Foreign election interference | September 12, 2018 | Still in effect on September 16, 2026 | 8 years |
| Nicaragua | November 27, 2018 | Still in effect on September 16, 2026 | 7 years |
| Telecom supply chain | May 15, 2019 | Still in effect on September 16, 2026 | 7 years |
| Mali | July 26, 2019 | Still in effect on September 16, 2026 | 7 years |
| Syria | October 14, 2019 | Still in effect on September 16, 2026 | 6 years |
| Chinese military companies | November 12, 2020 | Still in effect on September 16, 2026 | 5 years |
| Burma | February 10, 2021 | Still in effect on September 16, 2026 | 5 years |
| Russia | April 15, 2021 | Still in effect on September 16, 2026 | 5 years |
| Ethiopia | September 17, 2021 | Still in effect on September 16, 2026 | 4 years |
| Global drug trade | December 15, 2021 | Still in effect on September 16, 2026 | 4 years |
| Afghan central bank assets | February 11, 2022 | Still in effect on September 16, 2026 | 4 years |
| Russian-linked ships | April 21, 2022 | Still in effect on September 16, 2026 | 4 years |
| Hostages held abroad | July 19, 2022 | Still in effect on September 16, 2026 | 4 years |
| U.S. tech investment in China | August 9, 2023 | Still in effect on September 16, 2026 | 3 years |
| Cybersecurity | January 16, 2025 | Still in effect on September 16, 2026 | 1 year |
| Energy | January 20, 2025 | Still in effect on September 16, 2026 | 1 year |
| Cartels as terrorist groups | January 20, 2025 | Still in effect on September 16, 2026 | 1 year |
| Southern border | January 20, 2025 | Still in effect on September 16, 2026 | 1 year |
| Canada tariffs | February 1, 2025 | Still in effect on September 16, 2026 | 1 year |
| Mexico tariffs | February 1, 2025 | Still in effect on September 16, 2026 | 1 year |
| China tariffs | February 1, 2025 | Still in effect on September 16, 2026 | 1 year |
| International Criminal Court | February 6, 2025 | Still in effect on September 16, 2026 | 1 year |
| Trade deficit tariffs | April 2, 2025 | Still in effect on September 16, 2026 | 1 year |
| Brazil | July 30, 2025 | Still in effect on September 16, 2026 | 1 year |
| Venezuelan oil revenue | January 9, 2026 | Still in effect on September 16, 2026 | under 1 year |
| Cuba | January 29, 2026 | Still in effect on September 16, 2026 | under 1 year |
| Power grid equipment | August 26, 2026 | Still in effect on September 16, 2026 | under 1 year |
Emergencies in effect on September 16, 2026, with our short labels for each order. Source: Brennan Center for Justice, Declared National Emergencies Under the National Emergencies Act.
The 1979 Iran emergency shows how the system drifts. It was declared during the hostage crisis and stays in force through a one-line notice each November. Under the law, each chamber is supposed to meet every six months to consider ending each emergency (50 U.S.C. § 1622). In practice, those votes almost never happen. The War Powers Act’s 60-day limit on military force has the same weakness, because it also depends on Congress voting to enforce it. The 2001 war authorization shows the same drift from the other side: a vote Congress took once, still in force 25 years later.
Trump’s second term is declaring new emergencies faster than any president since the law passed. Counting per year in office keeps the comparison fair, because the terms run from four to eight years and the current one is 20 months old.
| Category | Value |
|---|---|
| Carter (2 in 4 years) | 0.5 |
| Reagan (6 in 8 years) | 0.8 |
| George H.W. Bush (5 in 4 years) | 1.3 |
| Clinton (17 in 8 years) | 2.1 |
| George W. Bush (14 in 8 years) | 1.8 |
| Obama (12 in 8 years) | 1.5 |
| Trump, 1st term (13 in 4 years) | 3.3 |
| Biden (11 in 4 years) | 2.8 |
| Trump, 2nd term (12 in 20 months) | 7.3 |
Declarations per year, computed from Brennan Center's list of 92 declarations under the National Emergencies Act, updated September 16, 2026. The second-term count runs from January 20, 2025 to September 16, 2026.
A high count is not the same as abuse. Many of those 12 are ordinary sanctions orders, like the ones on Venezuelan oil revenue and on the International Criminal Court. What set 2025 apart was using emergencies for tariffs and for border money Congress had refused, which is policy Congress normally writes.
Why Congress Rarely Ends an Emergency
Emergency powers let one person make decisions that normally take an act of Congress. In a sudden crisis, that speed is the point. When the power is used for tariffs or for money Congress refused, the emergency becomes a way around the people’s elected representatives.
Congress is supposed to be the check, and the record shows why it rarely works. In 2019, both chambers voted to end the border emergency and still lost to a veto. In 2025, the Senate voted three times to end tariff emergencies, and House leaders changed their rules so no vote had to happen. The tariffs ended only when the Supreme Court ruled, ten months after they began.
The Honest Disagreement
Serious people disagree about emergency powers. Here are both cases.
The case for broad emergency powers is that a president needs to act fast when a real crisis hits. Sanctions on a hostile government, asset freezes on terrorists, and a block on compromised grid equipment cannot wait weeks for Congress. Supporters argue that the executive branch is built for speed, that Congress can end an emergency it dislikes, and that the courts stop real overreach, as they did on tariffs.
The case for tighter limits comes from the Brennan Center, the conservative National Taxpayers Union, and members of both parties. They argue that emergencies have become a way to skip Congress on ordinary policy, pointing to the 2025 tariffs and the 2019 wall money. They note that Congress’s override is nearly impossible to use after 1983, and that the House switched off even the required votes in 2025.
The two sides narrow on accountability. Even defenders of strong emergency powers rarely argue that a 1979 emergency should run in 2026 with no vote. The real question is how long a president’s switch should stay on before Congress has to say yes. The tariff ruling is one of eight tests of presidential power tracked in our authoritarianism explainer.
Frequently Asked Questions
Are we in a national emergency right now?
Yes. 52 national emergencies were in effect on September 16, 2026, by the Brennan Center’s count. The oldest, over Iran, dates to 1979. The newest, declared August 26, 2026, covers foreign-made equipment in the power grid.
Who can declare a national emergency?
The president, under the National Emergencies Act. Congress can declare one too, which unlocks 13 more powers, according to the Brennan Center. Governors declare their own states of emergency under state law.
How long does a national emergency last?
It ends on its anniversary unless the president publishes a notice renewing it in the 90 days before. The president can end it at any time, and so can Congress with a joint resolution that survives a veto.
Does a national emergency suspend my rights?
No. The Supreme Court said in Ex parte Milligan (1866) that the Constitution is a law “equally in war and in peace.” Only Congress can suspend habeas corpus, and only in a rebellion or invasion.
Can Congress end a national emergency?
Yes, with a joint resolution. If the president vetoes it, ending the emergency takes two-thirds of both chambers. That has never happened.
What You Can Do
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Ask your House member to cosponsor the ARTICLE ONE Act. Chip Roy (R-Texas) and Steve Cohen (D-Tennessee) reintroduced it on August 20, 2026. Every emergency would end after 30 days unless a majority of both chambers approves it.
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Ask your senators to introduce or back a Senate version. Mike Lee (R-Utah) led the Senate bill in past Congresses, and a bill with sponsors in both chambers moves faster.
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Look up how your members voted on the tariff emergencies. Check the Senate vote on the global tariff emergency and the House vote on the Canada emergency. Thank or question them by name.
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Ask your members to hold the six-month votes the law requires. The National Emergencies Act tells each chamber to consider ending every emergency twice a year. Ask whether they will push for those votes on the 52 now active.
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Learn the related powers. Read our Insurrection Act explainer, our martial law explainer, and our Posse Comitatus Act explainer to see what a president can and cannot do with the military at home.
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Send the letter below asking your members to make emergencies expire unless Congress approves them.