why do u need redinency to run for president

The word "redinency" is not recognized in standard English, so it is difficult to provide a specific answer regarding its relevance to running for president.

However, if you meant "residency," which typically refers to the requirement of having lived in a specific place for a certain period of time, it could be relevant for presidential candidates because the Constitution of the United States imposes certain eligibility criteria for the position. According to Article II, Section 1 of the Constitution, in order to be eligible for the presidency, a person must be a natural-born citizen of the United States, be at least 35 years old, and have been a resident of the country for at least 14 years. These requirements ensure that candidates have a deep connection and understanding of the nation, its values, and its system of governance.