they can serve a maximum of two four year terms
The term of office for US presidents is 4 years. I hope that is what you want to know.
Jan. 20
All US presidents take the oath of office, starting with the first president, George Washington.
The president nominates the member of his cabinet . They must be confirmed by the US Senate in order to take office.
In the US, the office of President is prescribed by the Constitution.
If you're asking whether any US Presidents were constitutionally ineligible to hold office, the answer is no.
Although 15 past U.S. Presidents have been Freemasons, this is not a requirement of office.
Richard M. Nixon, in 1974.
The US Secret Service provides protection for retired Presidents as part of their mandate to protect former Presidents and their families. This protection is offered for the lifetime of the former President, unless they decline it after leaving office. The purpose is to ensure the security and safety of the former Presidents and their immediate family members.
Theodore Roosevelt was a former US President and a candidate for that office when he was shot and wounded.
US Representatives stay in office for two years, but can be re-elected indefinitely. US Congresspeople stay in office for six years, and also can be re-elected indefinitely. US Presidents stay in office for four years, can be re-elected once but can serve a total of ten years in the office.
New US presidents take the oath of office and become President at noon on January 20, of the year following the election.