U.S. Ambassador to the United Nations Kelly Craft and James Jeffrey, the U.S. envoy for Syria, pose with rescue workers at the Syrian commercial crossing point of Bab al-Hawa opposite to Turkey's Cilvegozu border gate, in Idlib governorate, Syria, March 3, 2020. REUTERS/Tuvan Gumrukcu

An English translator works as U.S. Ambassador to the United Nations Kelly Craft speaks during a Security Council meeting about the situation in Syria at United Nations Headquarters in the Manhattan borough of New York City, New York, U.S., February 28, 2020. REUTERS/Carlo Allegri

Vietnam's ambassador to the United Nations Dang Dinh Quy listens during a Security Council meeting about the situation in Syria at United Nations Headquarters in the Manhattan borough of New York City, New York, U.S., February 28, 2020. REUTERS/Carlo Allegri

U.S. Ambassador to the United Nations Kelly Craft listens during a Security Council meeting about the situation in Syria at United Nations Headquarters in the Manhattan borough of New York City, New York, U.S., February 28, 2020. REUTERS/Carlo Allegri

U.S. Ambassador to the United Nations Kelly Craft speaks during a Security Council meeting about the situation in Syria at United Nations Headquarters in the Manhattan borough of New York City, New York, U.S., February 28, 2020. REUTERS/Carlo Allegri

U.S. Ambassador to the United Nations Kelly Craft speaks during a Security Council meeting about the situation in Syria at United Nations Headquarters in the Manhattan borough of New York City, New York, U.S., February 28, 2020. REUTERS/Carlo Allegri

U.S. Ambassador to the United Nations Kelly Craft speaks during a Security Council meeting about the situation in Syria at United Nations Headquarters in the Manhattan borough of New York City, New York, U.S., February 28, 2020. REUTERS/Carlo Allegri

U.S. Ambassador to the United Nations Kelly Craft listens during a Security Council meeting about the situation in Syria at United Nations Headquarters in the Manhattan borough of New York City, New York, U.S., February 28, 2020. REUTERS/Carlo Allegri

Ambassador of China to the United Nations Chen Xu attends a session of the Human Rights Council at the United Nations in Geneva, Switzerland, February 24, 2020. Picture taken February 24, 2020. REUTERS/Denis Balibouse

Ambassador of Russia to the U.N. office Gennady Gatilov arrives with Russian Foreign Minister Sergei Lavrov at the Conference on Disarmament at the United Nations in Geneva, Switzerland, February 25, 2020. PREUTERS/Denis Balibouse

Pakistani actor and national Goodwill Ambassador of the United Nations High Commissioner for Refugees (UNHCR) Mahira Khan, attends a panel discussion following an international conference on the future of Afghan refugees living in Pakistan, organized by the Pakistan and the UN Refugee Agency in Islamabad, Pakistan February 18, 2020. REUTERS/Saiyna Bashir

Pakistani actor and national Goodwill Ambassador of the United Nations High Commissioner for Refugees (UNHCR) Mahira Khan, speaks during a panel discussion following an international conference on the future of Afghan refugees living in Pakistan, organized by the Pakistan and the UN Refugee Agency in Islamabad, Pakistan February 18, 2020. REUTERS/Saiyna Bashir

Security mans the hallways of the UN Plaza as politicians and ambassadors gather to brief the Security Council on a Middle East peace plan in New York, U.S., February 6, 2020. REUTERS/Yana Paskova

Russia's UN Ambassador Vasily Nebenzya arrives to the UN Plaza as politicians and ambassadors gather to brief the Security Council on a Middle East peace plan in New York, U.S., February 6, 2020. REUTERS/Yana Paskova

Brian Hook, the U.S. Special Representative for Iran and Senior Policy Advisor to Secretary of State Mike Pompeo, arrives to the UN Plaza as politicians and ambassadors gather to brief the Security Council on a Middle East peace plan in New York, U.S., February 6, 2020. REUTERS/Yana Paskova

Russia's UN Ambassador Vasily Nebenzya arrives to the UN Plaza as politicians and ambassadors gather to brief the Security Council on a Middle East peace plan in New York, U.S., February 6, 2020. REUTERS/Yana Paskova

U.S. Ambassador to the United Kingdom, Woody Johnson, is pictured after listening British Prime Minister Boris Johnson and David Attenborough during a conference about the UK-hosted COP26 UN Climate Summit, at the Science Museum in London, Britain February 4, 2020. Chris J Ratcliffe/Pool via REUTERS

U.S. Ambassador to the United Kingdom, Woody Johnson, is pictured after listening British Prime Minister Boris Johnson and David Attenborough during a conference about the UK-hosted COP26 UN Climate Summit, at the Science Museum in London, Britain February 4, 2020. Chris J Ratcliffe/Pool via REUTERS

Ambassador of China to the United Nations Chen Xu attends a news conference on coronavirus in Geneva, Switzerland January 31, 2020. REUTERS/Denis Balibouse

Ambassador of China to the United Nations Chen Xu attends a news conference on coronavirus in Geneva, Switzerland January 31, 2020. REUTERS/Denis Balibouse

Ambassador of China to the United Nations Chen Xu attends a news conference on coronavirus in Geneva, Switzerland January 31, 2020. REUTERS/Denis Balibouse

Ambassador of China to the United Nations Chen Xu attends a news conference on coronavirus in Geneva, Switzerland January 31, 2020. REUTERS/Denis Balibouse

Ambassador of China to the United Nations Chen Xu attends a news conference on coronavirus in Geneva, Switzerland January 31, 2020. REUTERS/Denis Balibouse

Ambassador of China to the United Nations Chen Xu attends a news conference on coronavirus in Geneva, Switzerland January 31, 2020. REUTERS/Denis Balibouse

European ambassadors to the United Nations Security Council (L-R) Jurgen Schulz, German Deputy Ambassador to the UN, France's Nicolas De Riviere, Britain's Karen Pierce, Poland's Joanna Wronecka and Belgium's Marc Pecsteen de Buytswerve reiterate their position on Israeli settlements in occupied Palestinian territories ahead of a Security Council meeting on the Middle East at the United Nations in New York, U.S., November 20, 2019. REUTERS/Rodrigo Campos

U.S. Special Representative for Syria Engagement and Special Envoy for the Global Coalition to defeat ISIL, ambassador James Franklin Jeffrey gestures during a meeting with delegations of Egypt, France, Germany, Jordan, Saudi Arabia, Britain and the U.S. on Syria's situation at the UN Offices in Geneva, Switzerland September 12, 2019. Fabrice Coffrini/Pool via REUTERS

Germany's State Secretary of the Federal Foreign Office Andreas Michaelis, speaks with UK Ambassador to the United Nations, Karen Pierce, before a meeting of the UN Security Council at UN headquarters in New York, U.S., August 20, 2019. REUTERS/Lucas Jackson

U.S. Secretary of State Mike Pompeo greets Israeli Ambassador to the United Nations, Danny Danon, before a meeting of the UN Security Council at UN headquarters in New York, U.S., August 20, 2019. REUTERS/Lucas Jackson

U.S. Secretary of State Mike Pompeo greets Israeli Ambassador to the United Nations, Danny Danon, before a meeting of the UN Security Council at UN headquarters in New York, U.S., August 20, 2019. REUTERS/Lucas Jackson

Chinese Ambassador to the United Nations, Zhang Jun, speaks during a meeting of the UN Security Council at UN headquarters in New York, U.S., August 20, 2019. REUTERS/Lucas Jackson

U.S. Secretary of State Mike Pompeo (L) listens to Chinese Ambassador to the United Nations, Zhang Jun (R), speak during a meeting of the UN Security Council at UN headquarters in New York, U.S., August 20, 2019. REUTERS/Lucas Jackson

Nicolas de Riviere, French Ambassador to the United Nations, Karen Pierce, the United Kingdom's Ambassador to the UN, and Jurgen Schulz, German Deputy Ambassador to the UN, deliver a statement after a U.N. Security Council meeting, on North Korea's latest missile launches, at the United Nations headquarters in New York, U.S., August 1, 2019. REUTERS/Brendan McDermid

Nicolas de Riviere, French Ambassador to the United Nations, Karen Pierce, the United Kingdom's Ambassador to the UN, and Jurgen Schulz, German Deputy Ambassador to the UN, deliver a statement after a U.N. Security Council meeting, on North Korea's latest missile launches, at the United Nations headquarters in New York, U.S., August 1, 2019. REUTERS/Brendan McDermid

Mansour al-Otaibi, president of the UN Security Council and Kuwait's Ambassador to the UN speaks during news conference in Baghdad, Iraq June 29, 2019. REUTERS/Khalid Al-Mousily

Mansour al-Otaibi, president of the UN Security Council and Kuwait's Ambassador to the UN speaks during news conference in Baghdad, Iraq June 29, 2019. REUTERS/Khalid Al-Mousily

Former National Security Advisor and U.S. Ambassador to UN Susan Rice and Author Alyssa Mastromonaco speak on stage at the Women In The World Summit in New York, U.S, April 11, 2019. REUTERS/Brendan McDermid

Former National Security Advisor and U.S. Ambassador to UN Susan Rice, speaks on stage at the Women In The World Summit in New York, U.S, April 11, 2019. REUTERS/Brendan McDermid

Former National Security Advisor and U.S. Ambassador to UN Susan Rice, speaks on stage at the Women In The World Summit in New York, U.S, April 11, 2019. REUTERS/Brendan McDermid

Former National Security Advisor and U.S. Ambassador to UN Susan Rice, speaks on stage at the Women In The World Summit in New York, U.S, April 11, 2019. REUTERS/Brendan McDermid

Former National Security Advisor and U.S. Ambassador to UN Susan Rice, speaks on stage at the Women In The World Summit in New York, U.S, April 11, 2019. REUTERS/Brendan McDermid

Ibrahim Khraishi Ambassador of Palestine to the U.N. attends a session of the Human Rights Council at the United Nations in Geneva, Switzerland, March 18, 2019. REUTERS/Denis Balibouse

Ibrahim Khraishi Ambassador of Palestine to the U.N. attends a session of the Human Rights Council at the United Nations in Geneva, Switzerland, March 18, 2019. REUTERS/Denis Balibouse

United States diplomat Elliott Abrams greets U.N. Ambassador for Russia, Vasily Nebenzya, during a meeting of the UN Security Council at UN headquarters in New York, U.S., February 28, 2019. REUTERS/Lucas Jackson

United States diplomat Elliott Abrams greets U.N. Ambassador for Russia, Vasily Nebenzya, during a meeting of the UN Security Council at UN headquarters in New York, U.S., February 28, 2019. REUTERS/Lucas Jackson

United States diplomat Elliott Abrams greets U.N. Ambassador for Russia, Vasily Nebenzya, during a meeting of the UN Security Council at UN headquarters in New York, U.S., February 28, 2019. REUTERS/Lucas Jackson

United States diplomat Elliott Abrams greets U.N. Ambassador for Russia, Vasily Nebenzya, during a meeting of the UN Security Council at UN headquarters in New York, U.S., February 28, 2019. REUTERS/Lucas Jackson

U.S. President Donald Trump is welcomed by U.S. Ambassador to Vietnam Daniel Kritenbrink and Vietnamese officials as he arrives at Noi Bai International Airport for a second summit with North Korea's leader Kim Jong Un in Hanoi, Vietnam February 26, 2019. REUTERS/Leah Millis

U.S. Secretary of State Mike Pompeo, left, speaks with U.S. Ambassador to Vietnam Daniel Kritenbrink, second from left, as he arrives at Noi Bai International Airport in Hanoi, Vietnam, Tuesday, Feb. 26, 2019, for a second summit between President Donald Trump and North Korean leader Kim Jong Un. Andrew Harnik/POOL Via REUTERS

Volodymyr Yelchenko, Ukraine's ambassador to the United Nations speaks to the media following a meeting of the United Nations Security Council about the situation in Crimea at U.N. Headquarters in the Manhattan borough of New York City, New York, U.S., November 26, 2018. REUTERS/Carlo Allegri

Volodymyr Yelchenko, Ukraine's ambassador to the United Nations speaks to the media following a meeting of the United Nations Security Council about the situation in Crimea at U.N. Headquarters in the Manhattan borough of New York City, New York, U.S., November 26, 2018. REUTERS/Carlo Allegri

Volodymyr Yelchenko, Ukraine's ambassador to the United Nations speaks during a meeting of the United Nations Security Council about the situation in Crimea at U.N. Headquarters in the Manhattan borough of New York City, New York, U.S., November 26, 2018. REUTERS/Carlo Allegri

Volodymyr Yelchenko, Ukraine's ambassador to the United Nations attends a meeting of the United Nations Security Council about the situation in Crimea at U.N. Headquarters in the Manhattan borough of New York City, New York, U.S., November 26, 2018. REUTERS/Carlo Allegri

Volodymyr Yelchenko, Ukraine's ambassador to the United Nations attends a meeting of the United Nations Security Council about the situation in Crimea at U.N. Headquarters in the Manhattan borough of New York City, New York, U.S., November 26, 2018. REUTERS/Carlo Allegri

Volodymyr Yelchenko, Ukraine's ambassador to the United Nations speaks during a meeting of the United Nations Security Council about the situation in Crimea at U.N. Headquarters in the Manhattan borough of New York City, New York, U.S., November 26, 2018. REUTERS/Carlo Allegri

United States Ambassador to the United Nations Nikki Haley arrives for a meeting of the United Nations Security Council about the situation in Crimea at U.N. Headquarters in the Manhattan borough of New York City, New York, U.S., November 26, 2018. REUTERS/Carlo Allegri

United States Ambassador to the United Nations Nikki Haley speaks during a meeting of the United Nations Security Council about the situation in Crimea at U.N. Headquarters in the Manhattan borough of New York City, New York, U.S., November 26, 2018. REUTERS/Carlo Allegri

United States Ambassador to the United Nations Nikki Haley speaks during a meeting of the United Nations Security Council about the situation in Crimea at U.N. Headquarters in the Manhattan borough of New York City, New York, U.S., November 26, 2018. REUTERS/Carlo Allegri

Millie Bobby Brown, the teenage star of Netflix series "Stranger Things", poses at UN headquarters after being named the UNICEF'S youngest ever Goodwill Ambassador in New York, U.S., November 20, 2018. REUTERS/Shannon Stapleton

Millie Bobby Brown, the teenage star of Netflix series "Stranger Things", poses at UN headquarters after being named the UNICEF'S youngest ever Goodwill Ambassador in New York, U.S., November 20, 2018. REUTERS/Shannon Stapleton

Millie Bobby Brown, the teenage star of Netflix series "Stranger Things", poses at UN headquarters after being named the UNICEF'S youngest ever Goodwill Ambassador in New York, U.S., November 20, 2018. REUTERS/Shannon Stapleton