Overview and Core Answer
Under current U.S. law, a president can serve at most two elected terms, for a total of eight years. This limit is set by the 22nd Amendment to the U.S. Constitution. A president who has served two full terms cannot be elected again. A president who assumes office for more than two years of another term is also generally barred from being elected more than once. In practice, this means no president who is elected to two full terms may run for a third term, and most scenarios involving succession also limit eligibility to two elected terms.
Key Constitutional Rule: The 22nd Amendment
Background and Text
The 22nd Amendment was proposed by Congress in 1947 and ratified in 1951. It formalized the two-term tradition that had been followed since George Washington, responding to Franklin D. Roosevelt's four elected terms. The amendment addresses both election to office and succession eligibility.
- Section 1 sets term limits: No person can be elected president more than twice, and no one who has held the office for more than two years of a term to which someone else was elected can be elected more than once.
- Section 2 clarifies that these limits apply only to election, not to acting as president through succession or appointment.
How Term Limits Apply to Elected Terms
A president elected to a full four-year term can seek one additional elected term, for a maximum of two elected terms (eight years). If a vice president or other successor serves more than two years of the prior president's term, they may only be elected president one more time. These limits are strict; after reaching the limit, a president cannot legally run for a third elected term. Congress is responsible for enforcing these restrictions through certification and other constitutional processes.
Defining a Full Term Versus Partial Service
An elected term begins on Inauguration Day and lasts four years. Service as acting president, such as under the 25th Amendment while the president temporarily transfers power, does not count toward term limits. However, if a vice president or other officer succeeds to the presidency and serves more than two years of the term to which another was elected, the successor's eligibility for future election is limited to one additional term.
Notable Cases and Historical Practice
George Washington established the norm of serving two terms. Franklin D. Roosevelt was the only president elected to more than two terms before the 22nd Amendment. Since its ratification, every president has been limited to two elected terms, and the amendment has been interpreted consistently by the Department of Justice and federal agencies. No sitting president who has served two elected terms has attempted to run for a third.
Presidential Term Limits in Practice (Elected Terms Served)
| President / Scenario | Elected Terms Served | Notes on Third-Term Eligibility |
|---|---|---|
| Any president elected twice | 2 | Not eligible for another elected term under the 22nd Amendment |
| Successor who serves more than 2 years of another's term | — | May be elected president only once in their own right |
| Vice president or other officer acting less than 2 years | — | Can be elected twice as president, if eligible otherwise |
Practical Scenarios and Edge Cases
Several situations are often discussed in public debates. These include presidents attempting to run after their second term, changes in term length, or mid-cycle succession. Under current law and without a constitutional amendment, a president who has served two terms cannot run for a third. Short-term succession generally does not create a third-term opportunity unless more than two years remain in the prior term, in which case the successor may be elected only once.
Common Scenarios at a Glance
- President elected twice and still in office: Cannot run for a third elected term.
- Vice president completes less than two years of a predecessor's term: May be elected president twice.
- Vice president completes more than two years of a predecessor's term: May be elected president once.
- Mid-term succession and then winning two full elections: Limits total time in office to ten years as president under the amendment’s intent.
Frequently Asked Questions
- Does the 22nd Amendment apply to vice presidents who become president? Yes. The amendment applies to anyone who holds the powers and duties of the presidency, whether by election, succession, or appointment. Eligibility for election depends on how much of the prior term was served.
- Can a former president run for a third term if they did not serve two full terms? A former president who has served less than two full elected terms may be elected president additional times, as long as the total elected terms do not exceed two. For example, someone elected once and then serving one partial appointed term could still be elected twice.
- What would be required to allow a third term? A constitutional amendment approved by two-thirds of each chamber of Congress and ratified by three-fourths of the states would be required to change the term limit rules.
- Are there legal opinions on whether a third term is possible without an amendment? The Department of Justice’s Office of Legal Counsel has issued opinions affirming the 22nd Amendment’s restriction. Attempts to run without meeting constitutional requirements would likely face immediate legal challenges.
Summary and Bottom Line
Under the 22nd Amendment, a president cannot run for a third elected term after serving two elected terms or succeeding to more than two years of another term. Shorter periods of service may allow additional elected terms, but the overall limit is effectively ten years in most circumstances. Any change to this framework would require a constitutional amendment, not legislation or reinterpretation.