Your gonna need to look this up on wiki or ask , .com
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This person is called a partisan, which is a strong supporter of a party, cause, or person. This website may help you while studying: https://www.quia.com/jg/744289list.html
In this quotation from 1796, George Washington was warning America that having power would always lead to despotism unless there are different departments that restrict the head authority and balance the control of the government, instead of having the whole management of the country relying in only one person.