A political adviser is someone who provides guidance and support to a politician or political party. They offer advice on policies, strategies, and public image to help achieve political goals. Full definition
He is considered the former mayor's top political adviser. (msnbc.com)
But first, he had to call and check in with his trusted political adviser - who also happened to be the wife he had betrayed. (politicalticker.blogs.cnn.com)
We might expect such statements from our politicians, who employ political advisers to find such examples to help them sell controversial and unpopular policies to the public. (politics.co.uk)