How to Become President
You have to be born in the United States or have a mother or father that is a United States citizen. One other way you could become a United States Citizen is if you are born at an embassy, because that is United States land so if you or born on that then you are a Citizen of the United States of America.
Primaries and Caucuses
If you want to do good your going to want to have ideas to help the states that you are in. But if you still don't win that state you will people still have people vote for you so you have a better chance to win.