President Donald Trump, with first lady Melania Trump, waves as they walk from Marine One before boarding Air Force One in Hamburg, Germany, Saturday, July 8, 2017, as they head to Washington following the G20 Summit. (Photo by Evan Vucci/AP Photo)





A Marine guards cover blows away as President Donald Trump attempts to put it on his head during an arrival at Andrews Air Force Base, Saturday, July 8, 2017, in Andrews Air Force Base, Md. (Photo by Evan Vucci/AP Photo)





President Donald Trump retrieves a Marine guards cover after it blew off his head during an arrival at Andrews Air Force Base, Saturday, July 8, 2017, in Andrews Air Force Base, Md. (Photo by Evan Vucci/AP Photo)





Children swim and wash water buffalo in the Diyala River in Baghdad, Iraq, Saturday, July 8, 2017. The animals are bathed daily to help keep them free of diseases and to protect them from the heat. (Photo by Karim Kadim/AP Photo)





A portrait of slain New York police officer Miosotis Familia is placed on a podium before a tribute in her honor at the New York police department's 46th Precinct in the Bronx borough of New York, Saturday, July 8, 2017. Familia was shot to death early Wednesday, ambushed inside her command post by an ex-convict, who was later killed after pulling a gun on police. (Photo by Craig Ruttle/AP Photo)





A protester is throwing public city bikes into the burning barricade in Hamburg, Germany on July 7, 2017. Violent demonstrations against the Group of 20 summit meeting led to clashes between the police and protesters on the second consecutive night. (Photo by Daniel Dohlus/ZUMA Wire/Rex Features/Shutterstock)





Heavily armed special police forces arrive at the so-called 'Schanzenviertel' area after riots started on the sidelines of the G-20 summit in Hamburg, northern Germany, Friday evening, July 7, 2017. (Photo by Bodo Marks/DPA via AP Photo)





A protester posing in front of the burning barricade in Hamburg, Germany on July 7, 2017. Violent demonstrations against the Group of 20 summit meeting led to clashes between the police and protesters on the second consecutive night. (Photo by Daniel Dohlus/ZUMA Wire/Rex Features/Shutterstock)





Police detain a demonstrator watched by journalists during a protest on the first day of the G-20 summit in Hamburg, northern Germany, Friday, July 7, 2017. The leaders of the group of 20 meet July 7 and 8. (Photo by Bodo Marks/DPA via AP Photo)





Ice-cream vendor Jose Villa, 65, from Sinaloa, Mexico, cools off on the edge of Echo Park lake in Los Angeles on Saturday, July 8, 2017. An excessive heat wave in Southern California set records in several cities, breaking a mark set for the date in Los Angeles 131 years ago, the National Weather Service said. Around noon, the downtown temp spiked at 96 degrees, topping the 1886 record by a degree. (Photo by Damian Dovarganes/AP Photo)





Venezuelan opposition demonstrators blocking the avenue during a protest against President Nicolas Maduro clash with riot police, in Caracas, on July 6, 2017. A political and economic crisis in the oil- producing country has spawned often violent demonstrations by protesters demanding Maduro' s resignation and new elections. The unrest has left 91 people dead since April 1. (Photo by Juan Barreto/AFP Photo)





Firefighters battle a wildfire near Oroville, Calif., on Saturday, July 8, 2017. The California Department of Forestry and Fire Protection reported that several residents and one firefighter suffered minor injuries. Residents were ordered to evacuate from several roads in the rural area as flames climbed tall trees. (Photo by Noah Berger/AP Photo)





A plane drops retardant while battling a wildfire near Oroville, Calif., on Saturday, July 8, 2017. The fast-moving wildfire in the Sierra Nevada foothills destroyed structures, including homes, and led to several minor injuries, fire officials said Saturday as blazes threatened homes around California during a heat wave. (Photo by Noah Berger/AP Photo)





Firefighter Kern Kunst battles the Wall fire near Oroville, Calif., on Saturday, July 8, 2017. According to CalFire, the blaze has scorched 1,000 acres and destroyed 10 homes. (Photo by Noah Berger/AP Photo)





President of World Bank Group, Jim Yong Kim, left, and the daughter and advisor of U.S. president Donald Trump, Ivanka take part in a panel discussion “Launch Event Women's Entrepreneur Finance Initiative” during the G-20 summit in Hamburg, Germany, Saturday, July 8, 2017. (Photo by Michael Kappeler/Pool Photo via AP Photo)





U.S. President Donald Trump arrives for a working session at the G-20 summit in Hamburg, northern Germany, Saturday, July 8, 2017. The leaders of the group of 20 meet July 7 and 8. (Photo by Markus Schreiber/AP Photo)





German Chancellor Angela Merkel greets Ivanka Trump, right, daughter of the US President, during the panel discussion “Launch Event Women's Entrepreneur Finance Initiative” on the second day of the G-20 summit in Hamburg, Germany, Saturday, July 8, 2017. (Photo by Patrik Stollarz/Pool Photo via AP Photo)





Iraqi civilians flee through an alley as Iraqi Special Forces continue their advance against Islamic State militants in the Old City of Mosul, Iraq, Monday, July 3, 2017. (Photo by Felipe Dana/AP Photo)





A member of the Iraqi Federal Police opens fire against Islamic State militants in the Old City of Mosul, Iraq July 7, 2017. (Photo by Ahmed Saad/Reuters)





The body of an alleged Islamic State militant (?) lays at the entrance of a house as Iraqi forces continue their advance in Mosul, Iraq, Saturday, July 8, 2017. (Photo by Felipe Dana/AP Photo)





Fleeing Iraqi civilians sit inside a house as they wait to be taken out of the Old City during fighting between Iraqi forces and Islamic State militants in Mosul, Iraq, Saturday, July 8, 2017. (Photo by Felipe Dana/AP Photo)





Cade Swor of Winnie, Texas flips a calf in the calf tie-down roping event during the rodeo at the Calgary Stampede in Calgary, Alberta, Canada July 7, 2017. (Photo by Todd Korol/Reuters)





Debris and cars which were swept by heavy rain are seen in Asakura, Fukuoka Prefecture, Japan July 8, 2017. (Photo by Issei Kato/Reuters)





A masked protetser throws pieces of bricks and stones towards Indian police officers during a clash on the occassion of the death anniversary of Burhan Wani, a commander of the Hizbul Mujahideen militant group, in downtown Srinagar July 8, 2017. (Photo by Danish Ismail/Reuters)





People's Liberation Army soldiers stand in line before a performance during an open day at a naval base in Hong Kong, China July 8, 2017. (Photo by Bobby Yip/Reuters)





People's Liberation Army soldiers perform during an open day at a naval base in Hong Kong, China July 8, 2017. (Photo by Bobby Yip/Reuters)





A reveler looks through the barrier before the second running of the bulls at the San Fermin festival in Pamplona, northern Spain, July 8, 2017. (Photo by Eloy Alonso/Reuters)





A reveller sleeps while waiting for the start of the second running of the bulls at the San Fermin Festival, in Pamplona, northern Spain, Saturday, July 8, 2017. Revellers from around the world flock to Pamplona every year to take part in the eight days of the running of the bulls. (Photo by Alvaro Barrientos/AP Photo)





Displaced children play with ropes in Hassan Sham camp, east of Mosul, Iraq July 7,2017. (Photo by Alaa Al-Marjani/Reuters)





A model walks the runway at Rani Zakhem Fall/Winter 2017/18 fashion show during AltaRoma at Guido Reni District on July 7, 2017 in Rome, Italy. (Photo by Elisabetta Villa/Getty Images)





Models walk the runway at Rani Zakhem Fall/Winter 2017/18 fashion show during AltaRoma at Guido Reni District on July 7, 2017 in Rome, Italy. (Photo by Elisabetta Villa/Getty Images)





A female Yemeni students sits at a final exam in a secondary school in the capital Sanaa on July 8, 2017. (Photo by Mohammed Huwais/AFP Photo)





Participants throw special colored powders in the air during the Gay Pride parade at Moll de la Fusta in Barcelona, Spain, Saturday, July, 8, 2017. (Photo by Manu Fernandez/AP Photo)





A girl plays in the water during the Balaton Sound music festival held on the shore of lake Balaton in Zamardi, west Hungary, on July 7, 2017. (Photo by Mudra László)





Festival goers having fun at the Balaton Sound music festival in Zamardi next to the Lake of Balaton, 110 km (68 miles) west of Budapest, July 8, 2017. (Photo by Sandor Csudai)





A girl plays in the water during the Balaton Sound music festival held on the shore of lake Balaton in Zamardi, west Hungary, on July 7, 2017. (Photo by Mudra László)





Rescuers work amid the rubble of a building that collapsed in Torre Annunziata, near Naples, southern Italy, Friday, July 7, 2017. A five-story apartment block collapsed early Friday near the southern Italian city of Naples, and authorities were digging by hand to find anyone who may have been trapped. (Photo by Ciro Fusco/ANSA via AP Photo)





In this photo provided by the NHRA, Brittany Force drives in Top Fuel qualifying Saturday, July 8, 2017, at the NHRA Route 66 Nationals drag races in Joliet, Ill. (Photo by Jerry Foss/NHRA via AP Photo)





Spain's Garbine Muguruza returns to Romania's Sorana Cirstea during their Women's Singles Match on day six at the Wimbledon Tennis Championships in London Saturday, July 8, 2017. (Photo by Kirsty Wigglesworth/AP Photo)





Two men pose for selfies with a police officer as revellers take part in London Pride, the Lesbian, Gay, Bisexual, and Transgender (LGBT) parade in London, Britain, 08 July 2017. The annual event aims to raise awareness and campaign for equality on LGBT issues. (Photo by Pete Maclaine/EPA)





A drag queen poses in front of a rainbow flag as revellers take part in London Pride, the Lesbian, Gay, Bisexual, and Transgender (LGBT) parade in London, Britain, 07 July 2017. (Photo by Pete Maclaine/EPA)





Revellers dressed as Melania Trump and Donald Trump take part in London Pride, the Lesbian, Gay, Bisexual, and Transgender (LGBT) parade in London, Britain, 08 July 2017. (Photo by Amer Ghazzal/Rex Features/Shutterstock)