The impact that the spoils system had on the US Government was not good. It came into effect after Andrew Jackson awarded government positions to his supporters in the election of 1828. Many important positions in the government were held by nobodies who had little or no experience it politics.
Because the first constitution did NOT create a strong central government.
According to Albert Barnes, their mistake was that they didn't speak against slavery. Although many of them believed that slavery was against god and against the idea that god made everyone equal, they didn't do much against it out of many reasons, either they thought it was a necessary evil or they were afraid of the public reaction.
