Guyana's Carolyn Rodrigues Birkett is now the frontrunner to become the next UN secretary-general after a second straw poll, ahead of Costa Rica's Rebeca Grynspan and IAEA chief Rafael Grossi. Antonio Guterres's term ends on December 31. 🔗 https://t.co/AL392eYO1Z https://t.co/zlapCCP7TC