The job requires long hours managing telephone teams and volunteer groups canvassing neighborhoods for votes.
The salary is minuscule, but you get your feet wet in the political puddle by helping a favorite local candidate into office. It's good for making quick cash in the first few in-game days of a Sim's life, but players will probably want to switch to something else as soon as possible.
Out of all 20 careers from the base game, Livin' Large, and Unleashed, it is tied with Paranormal for being the most difficult career track to climb and only Slacker has a worse ratio of pay to friends required at rank 10. However, it is by far the most difficult career track to reach the top of due to its extremely steep friend requirement (17!), and at high ranks, it has by far the worst ratio of pay to friends required.
Politics follows a very similar pay curve to the military and law enforcement career tracks, having the third-highest pay at rank 1 but the third-lowest pay at rank 10 of any of the career tracks in the base game.