Final answer:
In state legislatures, term limits vary, commonly up to eight years, with a waiting period required to run again or a lifetime ban in some states. For the U.S. President, the 22nd Amendment limits service to two four-year terms or one term if more than two years of someone else's term was served. Senators and Representatives have no set term limits.
Step-by-step explanation:
The number of terms a member can be appointed to depends on the political office they serve. For state legislatures, consecutive term limits may allow a member to serve for a defined period, commonly eight years, after which they must wait for a period before running for office again, except in states like Oklahoma, which implements a lifetime ban. For the presidency, according to the 22nd Amendment, a person can be elected president no more than twice, limiting the presidency to a maximum of two four-year terms. Serving more than two years of a term to which another was elected counts towards this limit, reducing the number of possible terms to one. Unlike the presidency, U.S. Senators serve six-year terms without a set term limit, and members of the House of Representatives serve two-year terms, also without a set limit following the Supreme Court decision in U.S. Term Limits v. Thornton (1995).