In simple words, political advisers refers to the qualified individuals who work with or on behalf of the government for the welfare and development of the country.
These individuals holds higher qualifications in their subjects and are assigned to higher posts in various departments. They could be economists, scientists, lawyers or defense experts etc.
These individuals are responsible to make and interpret reports for political leaders and make them understands the threats and opportunities of the country so that decision making by the leaders could be done effectively.
Answer: The fedral government is here becuase they want power and do local laws and state laws and usa laws there kind of the same but other than that they are diffrent