Answer:
it was innovative not all people like change
I'm pretty sure it was the 13th Amendment, which abolished slavery. Hope this helps :)
When Madero was murdered in February 1913, Carranza drew up the Plan de Guadalupe, a purely political plan to oust Huerta. Carranza became the leader of northern forces opposed to Huerta. He went on to lead the Constitutionalist faction to victory and become president of Mexico.
