The issue of age has been in the forefront of Presidential politics, as a result of the clear decline in office of both Joe Biden and Donald Trump, the two oldest Presidents ever elected.
When Ronald Reagan was elected in 1980, just weeks short of age 70 at the Inauguration in January 1981, it was a controversial issue, particularly right after the failed Assassination attempt of March 30, 1981, which clearly had some effect on his health over time, as signs of early Alzheimers seemed evident to many in Reagan’s last two years, including to his son Ron Reagan.
It had been pointed out that Dwight D. Eisenhower, leaving the Presidency in January 1961 at age 70 and three months, had stated that no one older than himself should be President.
But as it turned out, we have now had three “elderly” Presidents in the past half century—Reagan, Trump, Biden.
This issue has caused this author and blogger to conduct research on the age of Democratic Presidential nominees, whether winner or losers of the Presidency, going back to the beginnings of the Democratic Party under Andrew Jackson in the 1828 Presidential Election through the Presidential Election of 2024.
The record shows the following for all Democratic Presidential contenders, including first time for those nominated more than once. Altogether, 36 individuals have been Democratic Party nominees, but only 15 have ever been elected President, including two who first succeeded upon the death of the incumbent President—Harry Truman after Franklin D. Roosevelt, and Lyndon B. Johnson after John F. Kennedy.
1828–Andrew Jackson—61
1836–Martin Van Buren–54
1844–James K. Polk–49
1848–Lewis Cass–66
1852–Franklin Pierce–48
1856–James Buchanan–65
1860–Stephen Douglas–47
1864–George McClellan–38
1868–Horatio Seymour–58
1872–Horace Greeley–61
1876–Samuel Tilden–62
1880–Winfield Scott Hancock–56
1884–Grover Cleveland–47
1896–William Jennings Bryan–36
1904–Alton Parker–52
1912–Woodrow Wilson–56
1920–James Cox–50
1924–John W. Davis–51
1928–Alfred E. Smith–55
1932–Franklin D. Roosevelt–51
1945–Harry Truman 60 Upon Succession
1952–Adlai Stevenson–52
1960–John F. Kennedy–43
1963–Lyndon B. Johnson–55 Upon Succession
1968–Hubert Humphrey–57
1972–George McGovern–50
1976–Jimmy Carter–52
1984–Walter Mondale–56
1988–Michael Dukakis–55
1992–Bill Clinton–46
2000–Al Gore–52
2004–John Kerry–61
2008–Barack Obama–47
2016–Hillary Clinton–69
2020–Joe Biden–78
2024–Kamala Harris–60
Of course, age longevity and overall good health is much improved over what it was in the 19th and 20th centuries, but the clear indication is that most Democratic Presidential nominees were under the age of 60 when first nominated for those who had more than one nomination.
Nine of these Democratic nominees were in their 60s, and only Lewis Cass in 1848 (66), James Buchanan in 1856 (65), and Hillary Clinton in 2016 (age 69), were above the age of 62.
And all by himself is Joe Biden in 2020 (age 78)!
So the two oldest Democratic nominees were the last two who ran against Donald Trump, the oldest Republican nominee, although both Clinton and Biden had tried for the nomination of their party when younger, Clinton in 2008 at age 61, and Joe Biden in 1988 at age 46 and again in 2008 at age 66.
Nine of these Democratic nominees were in their 30s and 40s, with the youngest being William Jennings Bryan in 1896 (36) and George McClellan in 1864 (38), and six of the other seven being elected President–James K. Polk in 1844 (49); Franklin Pierce in 1852 (48); Grover Cleveland in 1884 (47); John F. Kennedy in 1960 (43); Bill Clinton in 1992 (46); and Barack Obama in 2008 (47). Only Stephen Douglas in 1860 (47) failed to win the Presidency, and ironically died just four months after the inauguration of his opponent, Abraham Lincoln.
The remaining 17 Democratic nominees were in their 50s, with only five winning the White House—Martin Van Buren 1836 (54); Woodrow Wilson 1912 (56); Franklin D. Roosevelt 1932 (51); Lyndon B. Johnson 1963 upon Succession (55); and Jimmy Carter in 1976 (52).
In summary, 15 Democrats have been elected President, with 11 of them being in their 40s or 50s, and the only exceptions older are: Andrew Jackson (61); James Buchanan (66); Harry Truman (60) upon Succession; and Joe Biden (78).
So in conclusion, it is clear that the best strategy for the Democratic Party in 2028 is to nominate a candidate ideally younger than 61, or at the most age 64, but with 11 potential nominees being in their 50s in 2028, as compared to 4 between 39 and 49 in 2028, and 4 between 61 and 64 in 2028.