If you want to play the game of politics in BitLife, you will need to live your life in a certain way. Being good looking and smart, both help a lot. So in school, make sure you hit the books, play lots of sports, and look after yourself. If if you are born smart, it is a good idea to make sure you keep honing your mind throughout school and college.
You will also need to make sure you never get in trouble with an authority figure or the law. When you run for mayor, this kind of thing can be used against you by your opponents. If a fight starts, don’t fight back. It doesn’t matter if you are standing up for yourself or someone else, it will still come back to haunt you further down the line.
As soon as you can, which is normally after leaving school, you should try to become the School Board Director. You can find the option to do this in the Politics menu. It is the first step on the political ladder and will give you much-needed experience when you go for the role of Mayor. You will also need some money to fund the campaign, so make sure you have a decent enough job as well. You will need to pick which platform is your main concern, and then decide how you want to treat your opponent. You can be pretty mean to them over the course of the campaign, which could lead to a big win or a crushing loss, so it is a better idea to just treat them well, and set a strong tone with the electorate.
While you are the School Board Director, you will need to make some decisions. Some will be about policy, while others will be changes to do things that might harm your long term career. Always avoid anything that could look bad to the public, and if you want to be Mayor, you should try to make decisions that people will like. After two terms as the School Board Director, you will be ready to run for Mayor.
You can find this in the Politics menu, but remember you will need even more money for this campaign. You will once again need to go head to head in debates with someone, and they might even ask you a few underhand questions, but it is best not to stoop to their level. There can also be a very active rumor mill, so be prepared to have to shut down rumors about your personal life. Always be ready to deny rumors, even if they are true.
If you manage to run a successful campaign, you will become the mayor and can start plotting your next career moves.