Nigeria's Ngozi Okonjo-Iweala was poised to become the first African and first woman to lead the embattled World Trade Organization, after a South Korean rival withdrew on Friday and the United States reversed its previous opposition.

The government of President Joe Biden expressed its strong support for Okonjo-Iweala in a statement late Friday, lauding her experience at the World Bank and leading Nigeria's Finance Ministry, and pledging to work with her on needed reforms.

The twin developments ended months of uncertainty over the leadership of the global trade body, and cleared the way for WTO members to conclude a consensus-based process and confirm Okonjo-Iweala as the next WTO director-general.