Collocations for politician - noun

leading, popular, prominent, senior
experienced, veteran
a veteran politician of the left

influential, powerful
successful
charismatic
astute, clever, shrewd
corrupt, crooked
career, professional
conviction (esp. BrE)
consummate
Marcos was a consummate politician: energetic and ruthless.

elected
local
left-wing, right-wing
conservative, liberal, progressive
Conservative, Labour, etc.
Democratic, Republican
Opposition

elect
bribe
lobby
His job will be primarily to lobby politicians on airport and security issues.