a person who publicly supports or recommends a particular cause or policy
advocate
being a voting member of a community or organization and having the power to appoint or elect
constituent
(of an action) convenient and practical, although possibly improper or immoral
expedient
strongly encourage or urge (someone) to do something
exhort
a ruler or other person who holds absolute power, typically one who exercises it in a cruel or oppressive way
despot
preventing success or development; harmful; unfavorable
adverse
agree to a demand, request, or treaty
accede
a rebel or revolutionary
insurgent
attractively unusual or old-fashioned
quaint
a strong supporter of a party, cause, or person
partisan