VOA慢速英语:Hillary Clinton Announces 2016 Campaign for President

favorite – n. a person most likely to win

rivals – n. something or someone that is as good or almost as good as another person or thing

conspiracy – n. a secret plan made by two or more people to do something that is harmful or illegal

inquiry – n. an official effort to collect and examine information about something

incumbent – n. a person who holds a particular office or position