We already do! It is called an ELECTION!:banghead::banghead::banghead::lol:
Federal level:
President: Limited to being elected to a total of 2 four-year terms (except that a president who has already completed more than two years of an unfinished term may be elected in his own right only once)
Vice President: Unlimited four-year terms
House of Representatives: Unlimited two-year terms
Senate: Unlimited six-year terms
Supreme Court: No term limits, appointed to serve "during good behavior" (but can be impeached and removed from office for "high Crimes and Misdemeanors"); in practice a Justice serves until death or stepping down (by retirement or resignation) (My note: This also needs to be an elected office)
State legislatures with term limits
The following 15 legislatures have term limits:
Arizona Legislature: four consecutive two-year terms for both houses (eight years). No limit on total number of terms.
Arkansas General Assembly: three two-year terms for House members (six years) and two four-year terms for Senate members (eight years).
California State Legislature: twelve years total in either Assembly or Senate. (For legislators first elected on or before June 5, 2012, the previous limits of either three two-year terms for Assembly members (six years) and two four-year terms for Senate members (eight years) apply).
Colorado General Assembly: four consecutive two-year terms in the House (eight years) and two consecutive four-year terms in the Senate (eight years).
Florida Legislature: may serve no more than eight years in either house.
Louisiana State Legislature: three four-year terms for both houses (twelve years).
Maine Legislature: four two-year terms for both houses (eight years).
Michigan Legislature: three two-year terms for House members (six years) and two four-year terms for Senate members (eight years).
Missouri General Assembly: four consecutive two-year terms for House members (eight years) and two four-year consecutive terms for Senate members (eight years). Members may be elected again to the other house, but not serve more than 16 years.
Montana State Legislature: four two-year terms for House members (eight years) in any sixteen-year period and two four-year terms for Senate members (eight years) in any sixteen-year period.
Nebraska Legislature: two four-year terms (eight years).
Nevada Legislature: six two-year terms for Assembly members (twelve years) and three four-year terms for Senate members (twelve years).
Ohio General Assembly: four consecutive two-year terms for House members (eight years) and two consecutive four-year terms for Senate members (eight years).
Oklahoma Legislature: six two-year terms for House members (twelve years) and three four-year terms for Senate members (twelve years). Once term-limited in one house, a legislator cannot be elected to the other.
South Dakota Legislature: four consecutive two-year terms for both houses (eight years).
Overturned or repealed state legislative term limits
The following six legislatures have had their term limits nullified:
Idaho Legislature: the Legislature repealed its own term limits in 2002.
Massachusetts General Court: the Massachusetts Supreme Judicial Court overturned term limits in 1997.
Oregon Legislative Assembly: the Oregon Supreme Court ruled term limits unconstitutional in 2002. (how the hell is it unconstitutional when the president of the United States is limited to only 2 terms??)
Utah State Legislature: the Legislature repealed its own term limits in 2003.
Washington State Legislature: the Washington Supreme Court voided term limits in 1998.
Wyoming Legislature: the Wyoming Supreme Court ruled term limits unconstitutional in 2004. (see Oregon)
In practice, most other offices of elected officials ate the federal level have no term limit. At the state level, most offices of elected officials are limited to 4+ terms equating to up to 12 or more years in office for the lower level officials. But governors and such have no term limit and some states have no term limit at all. And then we have the city/county level elected offices which also have no term limits for mayors and sheriffs (see Mayor Bloominidiot).
Final word... NO, an election is not a term limit. As has been mentioned in other threads, a big problem with our election system is that small geographical areas of high density population areas tend to constantly vote certain ways. This makes it so the vast majority or the geographical area (the entire state or the entire country for that matter) are forced to live with the votes of everybody else. Take the outdated electoral college for example... If the president and VP get enough votes in a state, they win the whole state even if they don't win the popular vote (has actually happened in recent years).
So ALL elected officials need to be subject to a term limit and that term limit should be no higher then the maximum number of years that the President of the United States is limited to (8 years).