Its main function is to choose a presidential candidate from the aspirants. After the Presidential Candidate is chosen, he is allowed to choose his running-mate, a candidate for the Vice-Presidency.

• 它的主要功能是从争取人中选择总统候选人。选出总统候选人之后,他有权可以选择他的竞选队友,以及从其他候选人中选择副总统。