So, sometime between the 1860s and 1936, the (Democratic) party of small government became the party of big government, and the (Republican) party of big government became rhetorically committed to curbing federal power.
The Republican Party
They showed The split in the Democratic Party.
The election of 1912 created a split within the Republican party with the formation of the Progressive party.
Splinter parties are parties that have broken away or split from another, usually large, party.
The Republican Party.
Which issue below played a major role in the Democratic Party split
splinter party
The Payne-Aldrich Tariff Act split the Republican party into the Progressives and the Old Guard. The split caused a loss in the next election.
The Bull Moose party who ran TR.
The Republican party has never split. In 1912, Theodore Roosevelt, broke from the Republicans ,formed his own party and ran against the Republican president.
The Constitutional Union Party was formed after the Whig Party split and the Know Nothing Movement fell apart. Before the new party formed, it was also known as the American Party.
The Democrats split in 1860, making it easier for the new Republican party to win.