As the Executive head of the government of the United States, POTUS (President of the United States) is arguably the most compelling government official in the world. He is elected to a four-year term through an electoral college system. Following the Twenty-second Amendment adoption in 1951, no president can occupy the office for more than two terms.

Duties

1. The president acts as the nation’s chief administrator, functioning at once as the commander-in-chief of the military, head of a political party, and the chief executive officer of the federal government.
2. The president is concurrently the representative head of state of the nation, a notable figure at global events, ceremonies of historical importance, and an embodiment of the core values of American society.
3. In this multifaceted role, duties encompass the power to enact or veto legislation, negotiate & treaties with foreign governments, issue executive orders, and to condone or extend clemency for federal crimes.

There have been 45 presidents till date. 

1. The youngest president was John F. Kennedy at age 43 while, the oldest being Ronald Reagan at age 69.
2. The longest-serving president was Franklin D. Roosevelt, serving four terms, he died shortly into his fourth term in office.
3. William Henry Harrison was the shortest-serving president; he died from pneumonia after a month in office.

List of  Presidents of United States

S.no	Presidency	President	Party
1	1789-1797	George Washington	Unaffiliated
2	1797 -1801	John Adams	Federalist
3	1801-1809	Thomas Jefferson	Democratic-Republican
4	1809-1817	James Madison	Democratic-Republican
5	1817-1825	James Monroe	Democratic-Republican
6	1825-1829	John Quincy Adams	Democratic-Republican
7	1829-1837	Andrew Jackson	Democratic
8	1837 -1841	Martin Van Buren	Democratic
9	1841-1841	William Henry Harrison	Whig
10	1841-1845	John Tyler	Whig
11	1845-1849	James K. Polk	Democratic
12	1849-1850	Zachary Taylor	Whig
13	1850-1853	Millard Fillmore	Whig
14	1853-1857	Franklin Pierce	Democratic
15	1857-1861	James Buchanan	Democratic
16	1861-1865	Abraham Lincoln	Republican & National Union
17	1865-1869	Andrew Johnson	National Union
18	1869-1877	Ulysses S. Grant	Republican
19	1877-1881	Rutherford B. Hayes	Republican
20	1881-1881	James A. Garfield	Republican
21	1881-1885	Chester A. Arthur	Republican
22	1885-1889	Grover Cleveland	Democratic
23	1889-1893	Benjamin Harrison	Republican
24	1893-1897	Grover Cleveland	Democratic
25	1897 – 1901	William McKinley	Republican
26	1901-1909	Theodore Roosevelt	Republican
27	1909-1913	William Howard Taft	Republican
28	1913-1921	Woodrow Wilson	Democratic
29	1921-1923	Warran G. Harding	Republican
30	1923-1929	Calvin Coolidge	Republican
31	1929-1933	Herbert Hoover	Republican
32	1933-1945	Franklin D. Roosevelt	Democratic
33	1945-1953	Harry S. Truman	Democratic
34	1953-1961	Dwight D. Eisenhower	Republican
35	1961-1963	John F. Kennedy	Democratic
36	1963-1969	Lyndon B. Johnson	Democratic
37	1969-1974	Richard Nixon	Republican
38	1974-1977	Gerald Ford	Republican
39	1977-1981	Jimmy Carter	Democratic
40	1981-1989	Ronald Reagan	Republican
41	1989-1993	George H.W. Bush	Republican
42	1993-2001	Bill Clinton	Democratic
43	2001-2009	George W. Bush	Republican
44	2009-2017	Barack Obama	Democratic
45	2017-2021	Donald Trump	Republican
46	2021-	Joe Biden	Democratic