Photos: Top photos of 2016

A visitor to the Muhammad Ali Center in Louisville, Ky., looks at an image of the great boxer posted on a makeshift memorial on June 9, 2016. Ali, born Cassius Clay, died on June 3 at age 74. (AP Photo/David Goldman, File)

AP Photo/David Goldman, File

Oscar Pistorius' prosthetics lie on the floor as he walks on his amputated legs during argument in mitigation of sentence by his defense attorney Barry Roux in the High Court in Pretoria, South Africa, on June 15, 2016. An appeals court found Pistorius guilty of murder and not a lesser charge of culpable homicide for the shooting death of his girlfriend Reeva Steenkamp. (Siphiwe Sibeko via AP, Pool, File)

Siphiwe Sibeko via AP, Pool, File

A family grieves over the grave of a family member at a graveyard damaged by Islamic State extremists in Qayara, about 31 miles (50 km) south of Mosul, Iraq, on Oct. 27, 2016. When IS overran Qayara more than two years ago, the extremist group began destroying headstones at the local graveyard, telling residents they were forbidden because they did not exist at the time of the prophet. (AP Photo/Marko Drobnjakovic, File)

AP Photo/Marko Drobnjakovic, File

The sun rises as migrants and refugees on a dingy arrive at the shore of the northeastern Greek island of Lesbos, after crossing the Aegean sea from Turkey, on March 20, 2016. (AP Photo/Petros Giannakouris, File)

AP Photo/Petros Giannakouris, File

A French flag stands tall within a floral tribute for the victims killed during a deadly attack on the famed Boulevard des Anglais in Nice, southern France, on July 17, 2016. (AP Photo/Laurent Cipriani, File)

AP Photo/Laurent Cipriani, File

This April 1, 2016 photo shows a partially collapsed overpass in Kolkata, India. The overpass spanned nearly the width of the street and was designed to ease traffic through the densely crowded Bara Bazaar neighborhood in the capital of the east Indian state of West Bengal. About 100 meters (300 feet) of the overpass fell, while other sections remained standing. (AP Photo/Bikas Das, File)

AP Photo/Bikas Das, File

Children watch an animated movie in a field at the northern Greek border station of Idomeni on March 5, 2016. The Idomeni border crossing in the Greek region of Central Macedonia has become a bottleneck, where thousands of migrants are trapped as they try to find refuge and a better life in Europe. (AP Photo/Vadim Ghirda, File)

AP Photo/Vadim Ghirda, File

The dead body of a migrant boy lies on the beach near the Aegean town of Ayvacik, Canakkale, Turkey, on Jan. 30, 2016. A boat carrying migrants to Greece hit rocks off the Turkish coast and capsized, killing at least 33 people, including five children, officials and news reports said. (AP Photo/Halit Onur Sandal, File)

AP Photo/Halit Onur Sandal, File

Bodies recovered by rescue workers lie on the sand as sunbathers walk past after a bike lane collapsed in Rio de Janeiro, Brazil, on April 21, 2016. A new elevated bike path that was heralded as a top legacy project of the Rio de Janeiro Olympics collapsed, killing at least two people. (AP Photo/Felipe Dana, File)

AP Photo/Felipe Dana, File

Republican presidential nominee Donald Trump speaks to Democratic presidential nominee Hillary Clinton during the second presidential debate at Washington University in St. Louis, on Oct. 9, 2016. (AP Photo/Patrick Semansky, File)

AP Photo/Patrick Semansky, File

The portraits of late North Korean leaders Kim Il Sung, left, and Kim Jong Il hang inside the convention hall of the April 25 House of Culture where the party congress is held in Pyongyang, North Korea, on May 9, 2016. North Korea's ruling-party congress announced a new title for party chairman Kim Jong Un, center, in a move that highlights how the authoritarian country's first congress in 36 years is aimed at bolstering the young leader. (AP Photo/Wong Maye-E, File)

AP Photo/Wong Maye-E, File

Asal Ahmed, 4, is carried by her father at the scene of a massive suicide truck bomb attack in Karada, Iraq, on July 9, 2016. (AP Photo/Hadi Mizban, File)

AP Photo/Hadi Mizban, File

Udai Faisal, an infant who is suffering from acute malnutrition, is hospitalized at Al-Sabeen Hospital in Sanaa, Yemen, on March 22, 2016. Udai died on March 24. Hunger has been the most horrific consequence of Yemen's conflict and has spiraled since Saudi Arabia and its allies, backed by the U.S., launched a campaign of airstrikes and a naval blockade a year ago. (AP Photo/Maad al-Zikry, File)

AP Photo/Maad al-Zikry, File

This aerial photo shows the damaged buildings in the historical part of the town of Amatrice, central Italy, after an earthquake on Aug. 24, 2016. The magnitude 6 quake struck at 3:36 a.m. (0136 GMT) and was felt across a broad swath of central Italy, including Rome where residents of the capital felt a long swaying followed by aftershocks. (AP Photo/Gregorio Borgia, File)

AP Photo/Gregorio Borgia, File

A man attempts to stop protesters from engaging with police in riot gear in front of the Police Department headquarters in Baton Rouge, La., after police attempted to clear the street on July 9, 2016. Several protesters were arrested. (AP Photo/Max Becherer, File)

AP Photo/Max Becherer, File

A woman cries as she stands next to a house destroyed by the earthquake in the Pacific coastal town of Pedernales, Ecuador, on April 17, 2016. The strongest earthquake to hit Ecuador in decades flattened buildings and buckled highways along its Pacific coast, sending the Andean nation into a state of emergency. (AP Photo/Dolores Ochoa, File)

AP Photo/Dolores Ochoa, File

A man stands on an earthquake-damaged building in Pedernales, Ecuador, on April 20, 2016. It was the country's deadliest earthquake in decades. (AP Photo/Dolores Ochoa, File)

AP Photo/Dolores Ochoa, File

Nigel Farage, the leader of the UK Independence Party, celebrates and poses for photographers as he leaves a "Leave.EU" organization party for the British European Union membership referendum in London on June 24, 2016. (AP Photo/Matt Dunham, File)

AP Photo/Matt Dunham, File

Arizona rancher LaVoy Finicum holds a gun as he guards the Malheur National Wildlife Refuge near Burns, Ore., on Jan. 5, 2016. Ammon Bundy, the leader of a small, armed group occupying the remote national wildlife preserve said earlier in the day that they will go home when a plan is in place to turn over management of federal lands to locals. (AP Photo/Rick Bowmer, File)

AP Photo/Rick Bowmer, File

Solange Ferreira bathes her son Jose Wesley in a bucket at their house in Bonito, Pernambuco state, Brazil, on Jan. 30, 2016. Jose Wesley, who cries incessantly, only calms down when he is placed in the bucket of water, a trick his mother learned from a nurse at a hospital. (AP Photo/Felipe Dana, File)

AP Photo/Felipe Dana, File

Shadows of children are cast on a tent bearing graffiti at the northern Greek border point of Idomeni, Greece, on May 4, 2016. (AP Photo/Gregorio Borgia, File)

AP Photo/Gregorio Borgia, File

Smoke billows from the Zaventem Airport in Brussels after an explosion there on March 22, 2016. Bombs struck the Brussels airport and one of the city's metro stations, killing and wounding dozens of people, as a European capital was again locked down amid heightened security threats. (AP Photo/Michel Spingler, File)

AP Photo/Michel Spingler, File

A Syrian woman takes shelter with her children in an iron box during a rainfall after they arrived from Turkey to the Greek deserted island of Pasas near Chios, on Jan. 20, 2016. Thousands of migrants and refugees continue to reach Greece's shores despite the winter weather. (AP Photo/Petros Giannakouris, File)

AP Photo/Petros Giannakouris, File

Israeli President Reuven Rivlin places his hands on the casket of former Israeli President Shimon Peres as he takes the stage to speak during a memorial service at Mount Herzl national cemetery in Jerusalem on Sept. 30, 2016. Peres died from complications from a stroke. He was 93. (AP Photo/Carolyn Kaster, File)

AP Photo/Carolyn Kaster, File

Military veterans walk onto a closed bridge to protest the Dakota Access oil pipeline across from police protecting the site in Cannon Ball, N.D., on Dec. 1, 2016. In a recent clash between police and protesters near the path of the pipeline, officers used tear gas, rubber bullets and large water hoses in sub-freezing temperatures. (AP Photo/David Goldman, File)

AP Photo/David Goldman, File

Republican presidential candidate Donald Trump turns to the American flag at a campaign rally in Sterling Heights, Mich., on Nov. 6, 2016. (AP Photo/Paul Sancya, File)

AP Photo/Paul Sancya, File

German Chancellor Angela Merkel arrives on the second day of the EU summit in Brussels on Oct. 21, 2016. (AP Photo/Olivier Matthys, File)

AP Photo/Olivier Matthys, File

Rescue workers carry the bodies of victims of an airplane crash in a mountainous area near La Union, Colombia, on Nov. 29, 2016. The plane was carrying the Brazilian first division soccer club Chapecoense team, which was on its way for a Copa Sudamericana final match against Colombia's Atletico Nacional. (AP Photo/Luis Benavides, File)

AP Photo/Luis Benavides, File

An Indian paramilitary soldier falls as he tries to kick an exploded tear gas shell thrown back by Kashmiri Muslim protesters at the end of a day-long curfew in Srinagar, Indian controlled Kashmir, on Aug. 8, 2016. Kashmir had been under a security lockdown and curfew since the killing of a popular rebel commander on July 8 sparked some of the largest protests against Indian rule in recent years. (AP Photo/Dar Yasin, File)

AP Photo/Dar Yasin, File

Iraqi Federal police covered in dust arrive to join the forces surrounding Fallujah, 40 miles (65 kilometers) west of Baghdad, Iraq, on May 24, 2016. (AP Photo/Rwa Faisal, File)

AP Photo/Rwa Faisal, File

People leave the Olympia mall in Munich, southern Germany, on July 22, 2016, where a gunman killed nine people. (AP Photo/Sebastian Widmann, File)

AP Photo/Sebastian Widmann, File

People gather next to tributes placed near a mural of British singer David Bowie by artist Jimmy C, in Brixton, south London, on Jan. 11, 2016. Bowie, the other-worldly musician who broke pop and rock boundaries with his creative musicianship, nonconformity, striking visuals and a genre-spanning persona he christened Ziggy Stardust, died of cancer at age 69. He was born in Brixton. (AP Photo/Tim Ireland, File)

AP Photo/Tim Ireland, File

Orlando Police officers direct family members away from a fatal shooting at Pulse nightclub in Orlando, Fla., on June 12, 2016. Omar Mateen, a 29-year-old security guard, killed 49 people and wounded 53 others in the mass shooting. (AP Photo/Phelan M. Ebenhack, File)

AP Photo/Phelan M. Ebenhack, File

Flowers lie on a T-shirt signed by fans of singer Prince at a makeshift memorial place created outside the Apollo Theater in New York on April 22, 2016. The pop star died at the age of 57. (AP Photo/Andres Kudacki, File)

AP Photo/Andres Kudacki, File

A truck moves the belongings of a family over a road destroyed by an earthquake from Pedernales to Jama, Ecuador, on April 18, 2016. The earthquake left a trail of ruin along Ecuador's Pacific Ocean coast. Hundreds died, thousands were homeless and without electricity. (AP Photo/Dolores Ochoa, File)

AP Photo/Dolores Ochoa, File

Dilek Dundar, wife of journalist Can Dundar, and his lawyer, second left, overpower a gunman just after he attacked Can Dundar outside Istanbul's main courthouse on May 6, 2016. The man shouted "traitor" and fired two shots at Dundar, who was on trial accused of revealing state secrets for his reports on alleged government arms smuggling to Syria. Dundar, editor-in-chief of opposition Cumhuriyet newspaper, escaped the attack unhurt, but Yavuz Senkal, a journalist working for private NTV television was slightly injured in the leg. (Can Erok/Cumhuriyet via AP, File)

Can Erok/Cumhuriyet via AP, File

Britain's Queen Elizabeth II waves as she watches the flypast, with Prince Philip, to right, Prince William, centre, with his son Prince George, front, Kate, Duchess of Cambridge holding Princess Charlotte, centre left, with The Prince of Wales standing with The Duchess of Cornwall, and Princess Anne, fourth left, on the balcony during the Trooping The Colour parade at Buckingham Palace, in London, on June 11, 2016. Hundreds of soldiers in ceremonial dress marched in London in the annual parade to mark the official birthday of Queen Elizabeth II. The Trooping the Colour tradition originates from preparations for battle, when flags were carried or "trooped" down the rank for soldiers to see. (AP Photo/Tim Ireland, File)

AP Photo/Tim Ireland, File

Authorities investigate a truck after it plowed through Bastille Day revelers in the French resort city of Nice, France, on July 14, 2016. France was ravaged by its third attack in two years when a large white truck mowed through revelers gathered for Bastille Day fireworks in Nice, killing dozens of people as it bore down on the crowd for more than a mile along the Riviera city's famed seaside promenade. (Sasha Goldsmith via AP, File)

Sasha Goldsmith via AP, File

Villagers stand outside their homes during flash floods on the outskirts of Peshawar, Pakistan, on April 3, 2016. (AP Photo/Mohammad Sajjad, File)

AP Photo/Mohammad Sajjad, File

Police detain a taxi driver who, along with other cabbies, blocked a main road to protest the one day per week driving restriction in Mexico City on April 13, 2016. Under new regulations imposed after the capital experienced its worst air-quality crisis in over a decade, 40 percent of cars were ordered temporarily off the road. (AP Photo/Eduardo Verdugo, File)

AP Photo/Eduardo Verdugo, File

The hearse carrying the body of Muhammad Ali passes in front of his boyhood home, top center, during his funeral procession in Louisville, Ky., on June 10, 2016. Ali, born Cassius Clay, died on June 3 at age 74. (AP Photo/Mark Humphrey, File)

AP Photo/Mark Humphrey, File

People chant "I am Fidel!" as the motorcade carrying the ashes of the late Cuban leader Fidel Castro leaves Cespedes Park in Santiago, Cuba, on Dec. 3, 2016. After days of national mourning and a tour of his ashes through the countryside, his remains have arrived at the city where they will be laid to rest. (AP Photo/Dario Lopez-Mills, File)

AP Photo/Dario Lopez-Mills, File

2016 AP Year End Photos 2016 AP YEAR END PHOTOS - Turkish soldiers secure the area as supporters of Turkey's President Recep Tayyip Erdogan protest in Istanbul's Taksim square on July 16, 2016. Prime Minister Binali Yildirim said a group within Turkey's military had engaged in what appeared to be an attempted coup. (AP Photo/Emrah Gurel, File)

AP Photo/Emrah Gurel, File

Jerry Lambert, left, a supporter of Republican presidential candidate Donald Trump, and Asa Khalif with Black Lives Matter scuffle after Khalif took Lambert's sign outside the location where Trump is to meet with African American business and civic leaders in Philadelphia on Sept. 2, 2016. (AP Photo/Matt Rourke, File)

AP Photo/Matt Rourke, File

Brazil's President Dilma Rousseff pauses during a meeting with governors at the Planalto Presidential Palace in Brasilia, Brazil, on March 4, 2016. Rousseff was president of Brazil from 2011 until her impeachment and removal from office on Aug. 31, 2016. (AP Photo/Eraldo Peres, File)

AP Photo/Eraldo Peres, File

A police officer's hand is bloodied as he blocks protesters with disabilities from reaching Plaza Murillo, as they try to march to the National Palace where Bolivia's President Evo Morales has his offices, to demand an increase in government disability compensation in La Paz, Bolivia, on May 25, 2016. Protesters were demanding an increase in state benefits for those with disabilities, to 500 Bolivianos, or about $73 dollars, per month. (AP Photo/Juan Karita, File)

AP Photo/Juan Karita, File

A sniper from Misrata fires towards Islamic State militant positions in Sirte, Libya, on Sept. 21, 2016. (AP Photo/Manu Brabo, File)

AP Photo/Manu Brabo, File

A Ugandan policeman struggles to keep hold of a box containing voting material as excited voters surround him after waiting over 7 hours without being able to vote, at a polling station in Ggaba, on the outskirts of Kampala, Uganda, on Feb. 18, 2016. (AP Photo/Ben Curtis, File)

AP Photo/Ben Curtis, File

A young child lies in a bucket to be weighed by nurses in Bangui, Central African Republic, on Feb. 11, 2016. The United Nations World Food Program estimates that nearly half the country - 2.5 million people - are facing hunger as more than two years of violence have severely disrupted the country's agriculture and health care sectors. (AP Photo/Jerome Delay, File)

AP Photo/Jerome Delay, File

An aerial view shows a makeshift migrant camp near Calais, France, on Oct. 17, 2016. The French evacuated 6,400 migrants from the encampment in 170 buses, starting on Oct. 24, 2016, with the intent of resettling the migrants in different regions of France. On Oct. 26 French authorities announced that the camp had been cleared. (AP Photo/Thibault Camus, File)

AP Photo/Thibault Camus, File

Daniele Ferreira dos Santos holds her son, Juan Pedro, who was born with microcephaly, outside her house in Recife, Pernambuco state, Brazil, on Jan. 26, 2016. Santos was never diagnosed with Zika, but she blames the virus for her son's defect and for the terrible toll it has taken on her life. (AP Photo/Felipe Dana, File)

AP Photo/Felipe Dana, File

Russian Police and Emergency Ministry employees investigate the wreckage of a crashed plane at the Rostov-on-Don airport, about 950 kilometers (600 miles) south of Moscow, Russia, on March 20, 2016. (AP Photo, File)

AP Photo, File

Migrants, most from Eritrea, jump into the water from a crowded wooden boat as they are helped by members of an NGO during a rescue operation in the Mediterranean sea, about 13 miles north of Sabratha, Libya, on Aug. 29, 2016. Thousands were rescued from more than 20 boats by members of Proactiva Open Arms before being transferred to the Italian cost guard and other NGO vessels operating in the area. (AP Photo/Emilio Morenatti, File)

AP Photo/Emilio Morenatti, File

Aerial view of rescue teams at the site where two trains collided head-on near Bad Aibling, Germany, on Feb. 9, 2016. Several people were killed and dozens were injured in the crash. (AP Photo/Matthias Schrader, File)

AP Photo/Matthias Schrader, File

In this frame grab taken from video provided by the Syrian anti-government activist group Aleppo Media Center (AMC), 5-year-old Omran Daqneesh sits in an ambulance after being pulled out of a building hit by an airstrike in Aleppo, Syria, on Aug. 17, 2016. The White Helmets were among the crowd of first responders who pulled Daqneesh and his family from the rubble of their apartment building. (Aleppo Media Center via AP, File)

Aleppo Media Center via AP, File

Mexican army soldiers escort drug lord Joaquin "El Chapo" Guzman to a helicopter to be transported to a maximum security prison at Mexico's Attorney General's hangar, in Mexico City, on Jan. 8, 2016. The world's most-wanted drug lord was captured for a third time in a daring raid by Mexican marines, six months after he tunneled out of a maximum security prison in an escape that embarrassed the government and strained ties with the United States. (AP Photo/Eduardo Verdugo, File)

AP Photo/Eduardo Verdugo, File

A car bomb explodes next to Iraqi special forces armored vehicles as they advance toward territory held by the Islamic State group in Mosul, Iraq, on Nov. 16, 2016. (AP Photo/Felipe Dana, File)

AP Photo/Felipe Dana, File

Pope Francis walks through the gate of the former Nazi German death camp of Auschwitz in Oswiecim, Poland, on July 29, 2016. (AP Photo/Gregorio Borgia, File)

AP Photo/Gregorio Borgia, File

Actor and comedian Bill Cosby, center, arrives for a court appearance on Feb. 2, 2016, in Norristown, Pa. Cosby was arrested and charged with drugging and sexually assaulting a woman at his home in January 2004. (AP Photo/Mel Evans, File)

AP Photo/Mel Evans, File

In this four-picture combo a boat overturns as people try to jump in the water off the Libyan coast on May 25, 2016. The Italian navy says it recovered a few bodies from the overturned migrant ship, while some 500 migrants who were on board were rescued safely. (Italian navy via AP, File)

Italian navy via AP, File

Cuban President Raul Castro, right, and U.S. President Barack Obama attend a baseball game between the Tampa Bay Rays and the Cuban national baseball team in Havana, Cuba, on March 22, 2016. The crowd roared as Obama and Castro entered the stadium and walked toward their seats in the VIP section behind home plate. It was the first game featuring an MLB team in Cuba since the Baltimore Orioles played in the country in 1999. (Ismael Francisco/Cubadebate via AP, File)

Ismael Francisco/Cubadebate via AP, File

President Barack Obama and first lady Michelle Obama, right, dance the tango with tango dancers during the State Dinner at the Centro Cultural Kirchner in Buenos Aires, Argentina, on March 23, 2016. (AP Photo/Pablo Martinez Monsivais, File)

AP Photo/Pablo Martinez Monsivais, File

Britain's Home Secretary Theresa May leaves 10 Downing Street in London after attending a cabinet meeting there on July 12, 2016. May has become Britain's new Prime Minister. (AP Photo/Kirsty Wigglesworth, File)

AP Photo/Kirsty Wigglesworth, File

A woman is carried away in a stretcher by medics after being trapped for six days in the rubble of a collapsed building in the Huruma area of Nairobi, Kenya, on May 5, 2016. After discovering the woman alive and conscious, rescuers administered an IV and oxygen but then had to work for a number of hours to free her from the rubble she was trapped in, before taking her away to hospital. (AP Photo/Ben Curtis, File)

AP Photo/Ben Curtis, File

A Thai woman cries as she holds a picture of the late King Bhumibol Adulyadej while others clasp their hands to pay last respects to a passing van carrying the body of their king outside the Grand Palace in Bangkok, Thailand, on Oct. 14, 2016. Bhumibol, the world's longest reigning monarch, died at the age of 88. (AP Photo/Wason Wanichakorn, File)

AP Photo/Wason Wanichakorn, File

A riot policeman fires tear gas toward opposition supporters during a protest in downtown Nairobi, Kenya, on May 9, 2016. Kenyan police tear-gassed opposition supporters after some pelted police with rocks during a protest demanding the disbandment of the electoral authority over alleged bias and corruption. (AP Photo/Ben Curtis, File)

AP Photo/Ben Curtis, File

People kick and beat a Turkish soldier that participated in an attempted coup, on Istanbul's Bosporus Bridge, on July 16, 2016. Turkish President Recep Tayyip Erdogan told the nation that his government was working to crush a coup attempt after a night of explosions, air battles and gunfire across the capital that left dozens dead and scores wounded. (AP Photo/Selcuk Samiloglu, File)

AP Photo/Selcuk Samiloglu, File

Pro-government supporters protest on the road leading to Istanbul's iconic Bosporus Bridge, background left, on July 21, 2016. Turkish lawmakers convened to endorse sweeping new powers for Turkey's President Recep Tayyip Erdogan that would allow him to expand a crackdown in the wake of a July 15 failed coup. (AP Photo/Emrah Gurel, File)

AP Photo/Emrah Gurel, File

In this April 14, 2016 photo, a Syrian man carries a carpet through a devastated part of the town of Palmyra as families load their belongings onto buses in the central Homs province in Syria. Thousands of residents of this ancient town who fled Islamic State rule returned briefly to check on their homes and salvage what they could _ carpets, blankets, a refrigerator or a few family mementos. (AP Photo/Hassan Ammar, File)

AP Photo/Hassan Ammar, File

Tens of thousands of people attend a candlelight vigil at Victoria Park in Hong Kong on June 4, 2016, to commemorate victims of the 1989 military crackdown in Beijing. China's bloody 1989 military crackdown on the Tiananmen Square pro-democracy protests was a pivotal moment in the country's political development. (AP Photo/Kin Cheung, File)

AP Photo/Kin Cheung, File

Migrants walk through a snow storm across a frozen stream after crossing the border from Macedonia into Serbia, near the village of Miratovac, Serbia, on Jan. 18, 2016. (AP Photo/Visar Kryeziu, File)

AP Photo/Visar Kryeziu, File

A woman cries as she crosses the river along with other migrants, north of Idomeni, Greece, attempting to reach Macedonia on a route that would bypass the border fence, on March 14, 2016. (AP Photo/Vadim Ghirda, File)

AP Photo/Vadim Ghirda, File

2016 AP Year End Photos 2016 AP YEAR END PHOTOS - Embers from a wildfire smolder along Lytle Creek Road near Keenbrook, Calif., on Aug. 17, 2016. (AP Photo/Noah Berger, File)

AP Photo/Noah Berger, File

A supporter pinches the cheek of front-running presidential candidate Mayor Rodrigo Duterte as he leaves Daniel R. Aguinaldo National High School at Matina district, his hometown, after voting in Davao city in southern Philippines on May 9, 2016. (AP Photo/Bullit Marquez, File)

AP Photo/Bullit Marquez, File

Republican presidential Candidate Donald Trump gives his running mate, Gov. Mike Pence of Indiana, a kiss as they shake hands after Pence's acceptance speech to be the vice presidential nominee during the third day session of the Republican National Convention in Cleveland, on July 20, 2016. (AP Photo/Mary Altaffer, File)

AP Photo/Mary Altaffer, File

In this photo provided by Georgian Public Broadcaster and photographed by Ketevan Kardava, Nidhi Chaphekar, a 40-year-old Jet Airways flight attendant from Mumbai, right, and another unidentified woman are shown after being wounded in Brussels Airport in Brussels, Belgium, after explosions rocked the airport on March 22, 2016. (Ketevan Kardava/Georgian Public Broadcaster via AP, File)

Ketevan Kardava/Georgian Public Broadcaster via AP, File

A Kenyan riot policeman repeatedly kicks a protester who lies in the street after tripping over while trying to flee from them, during a protest in downtown Nairobi, Kenya, on May 16, 2016. Kenyan police tear-gassed and beat opposition supporters during a protest demanding the disbandment of the electoral authority over alleged bias and corruption. (AP Photo/Ben Curtis, File)

AP Photo/Ben Curtis, File

Fidel Castro sits as he clasps hands with his brother, Cuban President Raul Castro, right, and second secretary of the Central Committee, Jose Ramon Machado Ventura, moments before the playing of the Communist party hymn during the closing ceremonies of the 7th Congress of the Cuban Communist Party, in Havana, Cuba, on April 19, 2016. (Ismael Francisco/Cubadebate via AP, File)

Ismael Francisco/Cubadebate via AP, File

A man carrying his belongings reacts as he leaves a caravan, as smoke and flames rise from the tents after fires were started in the makeshift migrant camp known as "the jungle" near Calais, northern France, on Oct. 26, 2016. (AP Photo/Thibault Camus, File)

AP Photo/Thibault Camus, File

Aedes aegypti mosquitoes, responsible for transmitting Zika, sit in a petri dish at the Fiocruz Institute in Recife, Brazil, o Sept. 29, 2016. Fiocruz Institute in Pernambuco collects mosquitoes from many areas around the state to test eradication efforts of the federal government such as one in which they sterilize male mosquitoes so they can't reproduce. (AP Photo/Felipe Dana, File)

AP Photo/Felipe Dana, File

President Barack Obama wipes away tears from his eyes as he speaks in the East Room of the White House in Washington on Jan. 5, 2016, about steps his administration is taking to reduce gun violence. (AP Photo/Carolyn Kaster, File)

AP Photo/Carolyn Kaster, File

Pope Francis is helped by Vatican Master of Ceremonies, Mons. Guido Marini as he stumbles on the altar while celebrating a mass in Czestochowa, Poland, on July 28, 2016. (AP Photo/Gregorio Borgia, File)

AP Photo/Gregorio Borgia, File

Jeff Muller of Wilmington, N.C., salutes as Republican presidential candidate Donald Trump arrives at a campaign rally on Oct. 26, 2016, in Kinston, N.C. (AP Photo/ Evan Vucci, File)

AP Photo/ Evan Vucci, File

President Barack Obama hugs Democratic Presidential candidate Hillary Clinton after addressing the delegates during the third day session of the Democratic National Convention in Philadelphia, on July 27, 2016. (AP Photo/Carolyn Kaster, File)

AP Photo/Carolyn Kaster, File

Britain's Prime Minister David Cameron, his wife Samantha and their children Nancy, Elwen and Florence, hug on the steps of 10 Downing Street in London on July 13, 2016. Cameron stepped down after six years as prime minister. (AP Photo/Kirsty Wigglesworth, File)

AP Photo/Kirsty Wigglesworth, File

Orange County Sheriff's deputies take a protester into custody outside the Anaheim Convention Center where Republican presidential candidate Donald Trump is holding a rally, on May 25, 2016, in Anaheim, Calif. (AP Photo/Jae C. Hong, File)

AP Photo/Jae C. Hong, File

Turkish President Recep Tayyip Erdogan, right, wipes his tears during the funeral of Mustafa Cambaz, Erol and Abdullah Olcak, killed while protesting the attempted coup against Turkey's government, in Istanbul on July 17, 2016. (AP Photo/Emrah Gurel, File)

AP Photo/Emrah Gurel, File

Residents carry a coffin containing the remains of a pregnant woman, a victim of Hurricane Matthew, in Jeremie, Haiti, on Oct. 7, 2016. (AP Photo/Dieu Nalio Chery, File)

AP Photo/Dieu Nalio Chery, File

A member of Baton Rouge police Cpl. Montrell Jackson's unit kneels and touches his casket during his funeral service at the Living Faith Christian Center in Baton Rouge, La., on July 25, 2016. Jackson, slain by a gunman who authorities said targeted law enforcement, is the last of the three Louisiana law enforcement officers killed in an ambush to be buried. (Patrick Dennis/Baton Rouge Advocate via AP, Pool, File)

Patrick Dennis/Baton Rouge Advocate via AP, Pool, File

A Peshmerga convoy drives toward the frontline in Khazer, about 30 kilometers (19 miles) east of Mosul, Iraq, on Oct. 17, 2016. The Iraqi military and the country's Kurdish forces have launched operations to the south and east of militant-held Mosul. (AP Photo/Bram Janssen, File)

AP Photo/Bram Janssen, File

Passengers embrace each other as they wait outside Istanbul's Ataturk airport, on June 29, 2016, following their evacuation after a blast. Suspected Islamic State group extremists hit the international terminal of Istanbul's Ataturk airport, killing dozens of people and wounding many others. (AP Photo/Emrah Gurel, File)

AP Photo/Emrah Gurel, File

People observe a minute of silence at the Place de la Bourse in the center of Brussels, on March 23, 2016. Bombs exploded the day before at the Brussels airport and one of the city's metro stations killing and wounding scores of people, as a European capital was again locked down amid heightened security threats. (AP Photo/Martin Meissner, File)

AP Photo/Martin Meissner, File

Migrants line-up to register at a processing center in the makeshift migrant camp known as "the jungle" near Calais, northern France, on Oct. 24, 2016. The French evacuated 6,400 migrants from the encampment in 170 buses, starting on Oct. 24, with the intent of resettling them in different regions of France. On Oct. 26 French authorities announced that the camp had been cleared. (AP Photo/Emilio Morenatti)

AP Photo/Emilio Morenatti