spin doctor

US /ˈspɪn ˌdɑk.tər/
UK /ˈspɪn ˌdɑk.tər/
"spin doctor" picture
1.

a person responsible for presenting to the public a favorable interpretation of actions or events, typically on behalf of a political party or prominent individual

:
The politician hired a spin doctor to improve his public image.
Her job as a spin doctor involves managing media perceptions.