President Arthur supported the Pendleton Civil Service Act because He was responding to President Garfield's assassination by a disgruntled job seeker.
Following the assassination of President James Garfield in 1881 by a disgruntled job-seeker, public support grew for civil service reform.
This law brought to a end the spoils system of political patronage and established competitive examinations for hiring civil servants.
The Pendleton civil service Act was a US legislation that established the United States Civil Service Commission as a nonpartisan federal agency to oversee the hiring of federal civil servants.
The legislation was intended to guarantee the rights of all citizens to compete for federal jobs without preferential treatment given based on politics, race, religion or origin.
The Pendleton Act provided that federal government jobs be awarded on the basis of merit and that government employees be selected through competitive exams. The act also made it unlawful to fire or demote for political reasons employees who were covered by the law.
Learn more about the Pendleton Act at https://brainly.com/question/2695327
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