That would be all of them except for the 43 men who DID serve as President.
james monroe
One of the few constitutional duties of the Vice-President is to serve as President of the US Senate.
In the US there is a line of succession should a president be unable to serve due to illness or death. The next in line to serve as president is the Vice President. This was seen when President Nixon resigned and Vice president Ford became president. Should a vice president be unable to serve, then the Speaker of the House of Representatives becomes the new president.
Grover Cleveland is the only US president to serve two non-consecutive (or two interrupted) terms of office.
William Howard Taft President 1909-1913 Chief Justice 1921-1930
james monroe
James Monroe
William Howard Taft
William Howard Taft
William Howard Taft
U.S. Presidents Who Never Served As U.S. Vice President:George WashingtonJames MadisonJames MonroeJohn Quincy AdamsAndrew JacksonWilliam Henry HarrisonJames K. PolkZachary TaylorFranklin PierceJames BuchananAbraham LincolnUlysses S. GrantRutherford B. HayesJames A. GarfieldGrover ClevelandBenjamin HarrisonWilliam McKinleyWilliam Howard TaftWoodrow WilsonWarren G. HardingHerbert HooverFranklin D. Roosevelt (ran but lost)Dwight D. EisenhowerJohn F. KennedyJimmy CarterRonald ReaganBill ClintonGeorge W. BushBarack ObamaDonald Trump
A US President cannot serve more than two terms.
Andrew Jackson
The US Constitution states that only a natural-born citizen of the United States is eligible to serve as president; a person born outside of the United States, even if he later becomes a citizen, may not serve.
The US president has a term of 4 years and can serve 2 terms. The president of Mali has a term of 5 years and can serve 2 terms.
Vice President
The current US president, Obama, is the 43rd person to serve as President.