Clark is the eighth candidate and the first from outside Europe to enter the race

Helen Clark, a former New Zealand prime minister who is now a senior UN official, announced she is running for the top position at the United Nations on Tuesday.

Clark is the eighth candidate, and the first from outside Europe, to enter the race to succeed Ban Ki-moon, whose second term expires at the end of this year. Some in the United Nations are pushing for a woman to take the top role for the first time and some, including Russia, are arguing that Eastern Europe has never had a secretary-general and it's their turn.