Cast member Daisy Ridley poses for a portrait while promoting the film "Star Wars: The Rise of Skywalker" in Pasadena, California, U.S., December 3, 2019.

U.S. President Donald Trump, U.S. Secretary of State Mike Pompeo and Acting White House Chief of Staff Mick Mulvaney attend a North Atlantic Treaty Organization Plenary Session at the NATO summit in Watford, near London, Britain, December 4, 2019.

Britain's Prime Minister Boris Johnson changes a wheel in a Formula One car during his visit at Red Bull Racing in Milton Keynes, Britain December 4, 2019.

A demonstrator ducks for cover as a police water cannon sprays during a protest against Chile's government, in Santiago, Chile December 4,2019.

A head of a sacrificed buffalo lies on the ground a day after the sacrificial ceremony of the "Gadhimai Mela" festival held at Bariyarpur in Nepal December 4, 2019. The festival, renowned for its large number of animal sacrifices, is held every five years at the Gadhimai Temple where devotees from Nepal and bordering India will sacrifice buffaloes, goats and birds while offering prayers to Gadhimai, the goddess of power.

North Korean leader Kim Jong Un rides a horse as he visits battle sites in areas of Mt Paektu, Ryanggang, North Korea, in this undated picture released by North Korea's Central News Agency (KCNA) on December 4, 2019. KCNA via REUTERS

A Palestinian man carries a lion cub as he shows it to children in Rafah refugee camp in the southern Gaza Strip December 4, 2019.

A prehistoric puppy, believed to be 18,000 years old, found in the permafrost in Russia’s Far East in 2018, is seen on this handout photo obtained by Reuters on December 4, 2019. Sergey Fedorov/Mammoth Museum of North-Eastern Federal University/Handout via REUTERS

Women rights activists and people wearing wearing masks take part in a protest opposing violence against women and against Chile's government in Santiago, Chile December 4, 2019.

A broken window of the attacked vehicle that was carrying Japanese doctor Tetsu Nakamura is seen in Jalalabad, Afghanistan December 4, 2019.

U.S. President Donald Trump talks with Canada's Prime Minister Justin Trudeau during a North Atlantic Treaty Organization Plenary Session at the NATO summit in Watford, Britain, December 4, 2019.

Committee ranking member Representative Doug Collins (R-GA) listens as constitutional scholars testify during a House Judiciary Committee hearing on the impeachment of US President Donald Trump on Capitol Hill in Washington, DC, U.S. December 4, 2019. Drew Angerer/Pool via REUTERS

Southeast Asian Games - Sepak Takraw - Laos v Myanmar - Subic Gymnasium, Olongapo, Philippines - December 4, 2019 Myanmar's Naing Aung Myo in action.

France's President Emmanuel Macron and Germany's Chancellor Angela Merkel look on as U.S. President Donald Trump and Turkey's President Recep Tayyip Erdogan walk during a photo opportunity at the NATO leaders summit in Watford, Britain December 4, 2019.

Soccer Football - Premier League - Liverpool v Everton - Anfield, Liverpool, Britain - December 4, 2019 Liverpool's Divock Origi celebrates scoring their third goal Action Images via Reuters/Lee Smith

A diver dressed as Santa Claus performs during a promotional event for Christmas in Seoul, South Korea, December 4, 2019.

Low-water levels are seen after a prolonged drought at Victoria Falls, Zimbabwe December 4, 2019.

A soldier from the Chinese People's Liberation Army (PLA) jumps through a ring of fire during a military exercise in Shihezi, Xinjiang Uighur Autonomous Region, China December 3, 2019. Picture taken December 3, 2019. REUTERS/Stringer

A man performs near the temple during the "Gadhimai Mela" festival held at Bariyarpur in Nepal December 4, 2019. The festival, renowned for its large number of animal sacrifices, is held every five years at the Gadhimai Temple where devotees from Nepal and bordering India will sacrifice buffaloes, goats and birds while offering prayers to Gadhimai, the goddess of power.

A stuntman performs on the well of death during the "Gadhimai Mela" festival at Bariyarpur in Nepal December 4, 2019. The festival, renowned for its large number of animal sacrifices, is held every five years at the Gadhimai Temple where devotees from Nepal and bordering India will sacrifice buffaloes, goats and birds while offering prayers to Gadhimai, the goddess of power.

Pamela Karlan, co-director of the Supreme Court Litigation Clinic at Stanford University Law School, sits among witnesses Noah Feldman, a professor of law at Harvard University Law School; Michael Gerhardt, professor of law at University of North Carolina School of Law; and Jonathan Turley, professor of law at George Washington University Law School, during a House Judiciary Committee hearing on the impeachment Inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., December 4, 2019.