Final answer:
U.S. presidents protected the spoils system of patronage during the late nineteenth century to reward loyal supporters. However, this system also led to inefficiency and corruption in government. Civil service reform eventually replaced patronage with a merit-based system.
Step-by-step explanation:
During the late nineteenth century, U.S. presidents were adamant about protecting the spoils system of patronage. This system allowed them to reward loyal supporters with political appointments. While the spoils system promoted party loyalty and responsiveness to the electorate, it also led to inefficiency in government and opportunities for corruption. The practice of patronage eventually declined with the emergence of civil service reform, which aimed to award government positions based on merit.