Washington: Barack Hussein Obama is the third consecutive president of the US to retain office after his predecessors George W. Bush and Bill Clinton.

Obama became the only African-American to hold the office of president in 2009 and he has now defeated Republican Mitt Romney to get a second term in the White House. His predecessor George W. Bush served as US president from 2001 to 2009.  William J. Clinton, better known as Bill Clinton, became president in 1993 and went on to retain his office till 2001.

Before him, George H.W. Bush had a single term from 1989-93. His predecessor Ronald Reagan won in 1981 and then retained the presidentship, with his term ending in 1989. Three presidents before him - James Carter 1977-81, Gerald R. Ford 1974-77 and Richard M. Nixon 1969-74 - served single terms.

The norm is that no US president serves more than two terms.

Here is a list of US Presidents:
1. George Washington 1789-1797
2. John Adams
1797-1801
3. Thomas Jefferson
1801-1809
4. James Madison
1809-1817
5. James Monroe
1817-1825
6. John Quincy Adams
1825-1829
7. Andrew Jackson
1829-1837
8. Martin Van Buren
1837-1841
9. William Henry Harrison
1841
10. John Tyler
1841-1845
11. James Knox Polk
1845-1849
12. Zachary Taylor
1849-1850
13. Millard Fillmore
1850-1853
14. Franklin Pierce
1853-1857
15. James Buchanan
1857-1861
16. Abraham Lincoln
1861-1865
17. Andrew Johnson
1865-1869
18. Ulysses S. Grant
1869-1877
19. Rutherford Birchard Hayes
1877-1881
20. James Abram Garfield
1881
21. Chester Alan Arthur
1881-1885
22. Grover Cleveland
1885-1889
23. Benjamin Harrison
1889-1893
24. Grover Cleveland
1893-1897
25. William McKinley
1897-1901
26. Theodore Roosevelt
1901-1909
27. William Howard Taft
1909-1913
28. Woodrow Wilson
1913-1921
29. Warren Gamaliel Harding
1921-1923
30. Calvin Coolidge
1923-1929
31. Herbert Clark Hoover
1929-1933
32. Franklin Delano Roosevelt
1933-1945
33. Harry S. Truman
1945-1953
34. Dwight David Eisenhower
1953-1961
35. John Fitzgerald Kennedy
1961-1963
36. Lyndon Baines Johnson
1963-1969
37. Richard Milhous Nixon
1969-1974
38. Gerald Rudolph Ford
1974-1977
39. James Earl Carter (Jr.)  1977-1981
40. Ronald Wilson Reagan
1981-1989
41. George Herbert Walker Bush
1989-1993
42. William Jefferson Clinton
1993-2001
43. George Walker Bush
2001-2009
44. *Barack Hussein Obama 2009
*Obama won a second term after defeating his Republican challenger Mitt Romney

(Agencies)

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