Answer:
The party that hoped to heal the political split between the north and the south in the 1860 election was the Constitutional Union Party.
Step-by-step explanation:
The Constitutional Union Party was an American political party founded in 1860. It was formed by former conservative Whigs who sought to avoid disunity on the issue of slavery. Those old Whigs joined with part of the Know Nothing movement to form the Constitutional Union Party. Its name comes from a very simple declaration: "not to recognize more political principles than the Constitution ... the Union ... and the application of the laws". By not taking any position in reference to slavery, they hoped to ignore that conflict.