The definition of political from OALD is:
connected with the state, government or public affairs
Is the definition of public of public affairs definition 1 or 2 or neither?
- of, relating to, or affecting all or most of the people of a country, state, etc.
- connected with the government and the services it provides
From dictionary.com, affairs is defined as:
matters of commercial or public interest or concern
Which of the following is the definition of interest of public interest?
- the quality that something has when it attracts somebody's attention or makes them want to know more about it
- a good result or an advantage for somebody/something