What is the 22nd Admendment of the Constitution?

The 22nd Amendment, ratified on February 27, 1951, was primarily designed to establish that no US President can be elected to more than two terms. It also limits the maximum time a President may serve to 10 years, if one should succeed to the office.

Text (Section 1)

"No person shall be elected to the office of the President more than twice, and no person who has held the office of President, or acted as President, for more than two years of a term to which some other person was elected President shall be elected to the office of the President more than once. [expired codicil omitted]"

Exceptions

Even this Amendment does not answer all legal questions that might ensue from extraordinary circumstances, such as multiple successions or the eligibility of a former President to be elected Vice President. All of these would require separate adjudication.