With the exception of George Washington, who had no party affilliation, every US presidential election has been won by nominees of the Republican Party, the Democratic Party, the Democratic-Republican Party, the Whig Party or the Federalist Party, all of which were major parties at the times. In 1864, Abraham Lincoln and Andrew Johnson won as National Union Party candidates, but that was part of the Republican Party.
Because they have never won a presidential election
jmaes Garfield of the republican party
He won his party's nomination and the Presidential election.
Obama
Democrat Woodrow Wilson won the 1912 Presidential election and served from 1913 to 1921.
Democratic Party candidate James Buchanan won the 1856 presidential election defeating Republican Party candidate John Freemont.
No. Democratic Party candidate James Buchanan won the 1856 presidential election. Buchanan won 19 states including all of the southern states. The southern states seceded after Republican Party candidate Abraham Lincoln won the 1860 presidential election.
John Adams, Federalist
Democratic Party candidate James Buchanan won the 1856 presidential election defeating Republican Party candidate John Freemont and American Party candidate Millard Fillmore.
Democratic Party candidate James Buchanan won the 1856 presidential election defeating Republican Party candidate John Freemont and American Party candidate Millard Fillmore.
Democratic Party candidate William J. Bryan ran for president three times and never won the presidential election. William McKinley won the 1896 presidential election defeating William J. Bryan. Incumbent President William McKinley won reelection in the 1900 presidential election again defeating William J. Bryan. William Taft won the 1908 presidential election defeating William J. Bryan.
In the U. S. Presidential Election of 1912, Progressive Party candidate Theodore Roosevelt received 88 votes while Republican Party candidate and incumbent President William Howard Taft received eight votes. Democratic Party candidate Woodrow Wilson won with 435 votes.