Angela Merkel

German Chancellor Angela Merkel watches how lemonade is mixed as part of a children's experiment during her visit at a kindergarten in Berlin, Germany, Tuesday, June 21, 2016

Michael Kappeler/dpa via AP

German Chancellor Angela Merkel watches how lemonade is mixed as part of a children’s experiment during her visit at a kindergarten in Berlin, Germany.

German Chancellor Angela Merkel signs an autograph as pupils attempt a selfie upon Merkel's arrival at the French high school (Franzoesisches Gymnasium Berlin) on May 3, 2016 in Berlin, Germany. Merkel visited the school to discuss European Union-related issues as part of the EU Project Day, in which German politicians across the country are visiting schools in order to raise awareness among high school of the role of the European Union

Sean Gallup/Getty Images

German Chancellor Angela Merkel signs an autograph as pupils attempt a selfie upon Merkel’s arrival at Franzoesisches Gymnasium Berlin, Germany on Tuesday

German Chancellor Angela Merkel wears a 'smart' jacket next to a group of students during a Girls' Day event held at the Federal Chancellery in Berlin, Germany. The jacket displays the temperature and reacts to pickpocketing.

Kaya Nietfeld/epa

German Chancellor Angela Merkel wears a ‘smart’ jacket next to a group of students during a Girls’ Day event held at the Federal Chancellery in Berlin, Germany. The jacket displays the temperature and reacts to pickpocketing.

US President Barack Obama visits Germany...epa05276425 German†Chancellor Angela Merkel (R) tests a Virtual Reality (VR) goggle next to US†President Barack Obama (L) as they visit the booth of ifm electronic (automation engineering) at the Hannover Messe industrial technology trade fair in Hanover,†Germany, 25 April 2016. The USA is this year's partner country at the trade fair. The US President is on a two-day visit to Germany.  EPA/CHRITSTIAN†CHARISIUS

Chritstian Charisius/EPA

German Chancellor Angela Merkel tests a Virtual Reality (VR) goggle next to US President Barack Obama as they visit the booth of ifm electronic (automation engineering) at the Hannover Messe industrial technology trade fair in Hanover, Germany

German Chancellor Angela Merkel attends the 500th anniversary ceremony of the German Beer Purity Law (Reinheitsgebot) in Ingolstadt, Germany, April 22, 2016.  REUTERS/Michaela Rehle

Michaela Rehle/Reuters

German Chancellor Angela Merkel attends the 500th anniversary ceremony of the German Beer Purity Law (Reinheitsgebot) in Ingolstadt, Germany

German Chancellor Angela Merkel (R) and ...German Chancellor Angela Merkel (R) and Indonesian President Joko Widodo inspect a military honor guard on April 18, 2016 before talks at the Chancellery in Berlin.

Tobias Schwarz/AFP

German Chancellor Angela Merkel and Indonesian President Joko Widodo inspect a military honor guard before talks at the Chancellery in Berlin 

EU Heads Of State Meet With Turkey To Finalise Migrant Deal...BRUSSELS, BELGIUM - MARCH 18: (L-R) Germany's Chancellor Angela Merkel, Britain's Prime Minister David Cameron and France's President Francois Hollande attend a meeting during a European Union leaders summit on migration, March 18, 2016 in Brussels, Belgium. EU leaders have gathered for a two-day summit to discuss a number of issues including the ongoing migrant crisis. (Photo by Francois Lenoir - Pool/Getty Images)

Francois Lenoir/Pool/Getty

Germany’s Chancellor Angela Merkel, Britain’s Prime Minister David Cameron and France’s President Francois Hollande attend a meeting during a European Union leaders summit on migration

German chancellor Angela Merkel  passes an advertising poster   with the cloud symbol at  the Telekom booth,  as she tours the CeBIT tech and computer fair in Hannover, Tuesday, March 15, 2016.  (Peter Steffen/dpa via AP)

Peter Steffen/dpa/AP

German chancellor Angela Merkel passes an advertising poster with the cloud symbol at the Telekom booth as she tours the CeBIT tech and computer fair in Hannover

French President Francois Hollande (L) embraces German Chancellor Angela Merkel as he welcomes her upon her arrival at the Elysee Presidential Palace in Paris on March 4, 2016. / AFP / STEPHANE DE SAKUTINSTEPHANE DE SAKUTIN/AFP/Getty Images

Stephane De Sakutin/AFP

French President Francois Hollande embraces German Chancellor Angela Merkel as he welcomes her upon her arrival at the Elysee Presidential Palace in Paris

German Chancellor Angela Merkel (R)and P...German Chancellor Angela Merkel (R)and Portuguese Prime Minister Antonio Costa (L) inspect a guard of honour prior to talks at the Chancellery in Berlin on February

Tobias Schwarz/AFP

German Chancellor Angela Merkel and Portuguese Prime Minister Antonio Costa inspect a guard of honour prior to talks at the Chancellery in Berlin 

 Italian Prime Minister Renzi gestures to German Chancellor Merkel during a news conference at the Chancellery in Berlin... Italian Prime Minister Matteo Renzi gestures to German Chancellor Angela Merkel during a news conference at the Chancellery in Berlin, Germany, January 29, 2016.      REUTERS/Fabrizio Bensch

Fabrizio Bensch/Reuters

Italian Prime Minister Matteo Renzi gestures to German Chancellor Angela Merkel during a news conference at the Chancellery in Berlin 

German Chancellor Angela Merkel sings ca...German Chancellor Angela Merkel sings carols with children dressed as the Three Kings at the Chancellery in Berlin during the Wise Men singing event on January 5, 2016. / AFP / TOBIAS SCHWARZTOBIAS SCHWARZ/AFP/Getty Images

Tobias Schwarz/AFP/Getty

German Chancellor Angela Merkel sings carols with children dressed as the Three Kings at the Chancellery in Berlin during the Wise Men singing event 

German Chancellor Angela Merkel holds a  toy wolf she got as a present during a party convention of the Christian Democrats (CDU) in Karlsruhe, Germany, Monday, Dec. 14, 2015.   Merkel faces a congress of her conservative party amid tensions over her management of the migrant influx.  ( AP Photo/Michael Probst)

Michael Probst/AP

German Chancellor Angela Merkel holds a toy wolf she got as a present during a party convention of the Christian Democrats (CDU) in Karlsruhe, Germany

Merkel in China

Soeren Stache/EPA

German Chancellor Angela Merkel reviews an honor guard as she is welcomed by China’s Prime Minister Li Keqiang (unseen) in Beijing, China, on Thursday

German Bundestag budget meeting...epa04923343 German Chancellor Angela Merkel winks at a colleague in the parliament building in Berlin, Germany, 10 September 2015. The German parliament continues to discuss the budget for 2016.  EPA/KAY NIETFELD

Kay Nietfeld/EPA

German Chancellor Angela Merkel winks at a colleague in the parliament building in Berlin, Germany. The German parliament continues to discuss the budget for 2016 

German Chancellor Angela Merkel (R) pres...German Chancellor Angela Merkel (R) presents a bouquet of flowers to German Agriculture Minister Christian Schmidt for his birthday during a weekly meeting of the German cabinet at the Chancellery in Berlin on August 26, 2015.    AFP PHOTO / JOHN MACDOUGALLJOHN MACDOUGALL/AFP/Getty Images

John Macdougall/AFP/Getty Images

German Chancellor Angela Merkel presents a bouquet of flowers to German Agriculture Minister Christian Schmidt for his birthday during a weekly meeting of the German cabinet at the Chancellery in Berlin 

A young woman walks past a graffiti reading "Mrs Merkel we still love you - Greece" in central Athens on June 19, 2015. The European Central Bank's decision-making governing council will hold an emergency session on June 19 to discuss a request from the Bank of Greece for an increase in liquidity to Greek banks

Aris Messinis/AFP

A young woman walks past a graffiti reading “Mrs Merkel we still love you – Greece” in central Athens on Friday

British Prime Minister David Cameron in Berlin...epa04773607 German Chancellor Angela Merkel (L) receives British Prime Minister David Cameron (R) with military honors at the Federal Chancellery in Berlin, Germany, 29 May 2015. Cameron is on a tour through the European capitals. He wants to negotiate reforms in the UK's EU membership before the referendum planned for the end of 2017.  EPA/MAURIZIO†GAMBARINI

Maurizio Gambarini/EPA

German Chancellor Angela Merkel receives British Prime Minister David Cameron with military honors at the Federal Chancellery in Berlin, Germany. Cameron is on a tour through the European capitals. He wants to negotiate reforms in the UK’s EU membership before the referendum planned for the end of 2017 

German Chancellor Merkel and Economy Minister Gabriel arrive at a cabinet meeting at the Chancellery in Berlin...German Chancellor Angela Merkel (R) and Economy Minister Sigmar Gabriel arrive at a cabinet meeting at the Chancellery in Berlin, April 1, 2015. Merkel's cabinet signed off on a draft law on Wednesday that imposes an effective ban on the controversial technique of fracking for shale gas.      REUTERS/Fabrizio Bensch

Fabrizio Bensch/Reuters

German Chancellor Angela Merkel and Economy Minister Sigmar Gabriel arrive at a cabinet meeting at the Chancellery in Berlin. Merkel’s cabinet signed off on a draft law on Wednesday that imposes an effective ban on the controversial technique of fracking for shale gas. 

SEYNE, FRANCE - MARCH 25:  French President Francois Hollande (L) bows his head as he stands with German Chancellor Angela Merkel and Spanish Prime Minister Mariano Rajoy as they meet with rescue workers on March 25, 2015 in Seyne, France.  Germanwings flight 4U9525 from Barcelona to Duesseldorf  has crashed in Southern French Alps. All 150 passengers and crew are thought to have died.  (Photo by Peter Macdiarmid/Getty Images)

Peter Macdiarmid/Getty

French President Francois Hollande bows his head as he stands with German Chancellor Angela Merkel and Spanish Prime Minister Mariano Rajoy as they meet with rescue workers in Seyne, France. Germanwings flight 4U9525 from Barcelona to Duesseldorf has crashed in Southern French Alps. All 150 passengers and crew are thought to have died.