Which party has won the most presidential elections?

The Republicans won 23 times - in 1860,1864,1868,1872,1876,1880,1888,1896

1900,1904,1908,1920,1924,1928,1952,1956.1968,1972,1980,1984,1988,2000, and 2004. They elected 16 different presidents. This figure is somewhat misleading since three Republican presidents were never elected as President.

The Democrats won 15 times , in 1884,1892,1912,1916,1932,1936,1940,1944,1948,1960,1964,1976,1992,1996 and 2008. They elected 9 different presidents.

The pre-civil war Democrats won 6 times, in 1828,1832,1936,1844,1852 and 1856 and elected 5 different presidents.