Richard M. Nixon, in 1974.
Richard Nixon is the only President to resign from office.
Some presidents are elected to two four year terms and leave office at the end of their term in office. Some presidents are elected to one four year term and leave at the end. The other presidents died in office, except Richard Nixon who was forced to resign.
JFK did not resign from office. He was assassinated while in office on 22 Nov 1963.
Presidents are not appointed- they are elected. A senator or representative can run for president , but if elected president , he must resign any previous office before he takes office as president.
Death or impeachment. They can resign, but I don't think this has ever happened.Nixon resigned his office and Ford took over the presidency.
A president can only be elected to at most two four-years terms. Further some of them die in office or resign and do not complete their terms,
Former presidents who resign are entitled to receive Secret Service protection. The Former Presidents Act provides post-presidential security to all presidents who served in office and their spouses. This protection is provided for a limited period of time or for their lifetime, depending on various factors.
Grant didn't resign.
Richard Milhous Nixon was the 37th President of the United States (1969-1974) and was the only president to resign (quit) the office.
The only US president to resign from office was Richard M. Nixon.
Lincoln didn't resign, he was assassinated. Nixon was the first and only president to resign.