Answer:
The Twenty-second Amendment (Amendment XXII) to the United States Constitution limits the number of times a person is eligible for election to the office of President of the United States to two, and sets additional eligibility conditions for presidents who succeed to the unexpired terms of their predecessors
The amendment prohibits anyone who has been elected president twice from being elected again
When term limits are found in presidential and semi-presidential systems they act as a method of curbing the potential for monopoly, where a leader effectively becomes "president for life". This is intended to protect a republic from becoming a de facto dictatorship.