The Democratic Party has existed for 188 years, since the election Of Andrew Jackson in 1828.
In that nearly two centuries, there have been major splits and divisions:
In 1860, the party split, and the Northern Democrats. the official party, nominated Illinois Senator Stephen Douglas for President, while Vice President John C. Breckinridge was the nominee of Southern Democrats.
In 1896, the “Gold Democrats” refused to back the party nominee, the “silver tongued orator”, thirty six year old William Jennings Bryan, who promoted “free silver”, and drew support from the rural states in the Midwest and Great Plains and Mountain West, and kept the South loyal to the party.
In 1948, Southern Democrats broke from the convention that nominated Harry Truman for a full term, and ran South Carolina Governor Strom Thurmond as the States Rights (Dixiecrats) candidate.
In 1968, Alabama Governor George C. Wallace formed the American Independent Party, and ran against Democratic nominee Hubert Humphrey.
Notice that it was the South that caused three of the four splits, with the result being Douglas and Humphrey losing because of the split, while Truman won despite Thurmond’s opposition.
The other time, it was the rural West that revolved against the “Eastern Establishment”, represented by Wall Street, but Bryan, nominated three times for President, was unable to win the Presidency, although he helped to shape the Progressive Era with some of his reform ideas.