Daughter of U.S. President Ivanka Trump, Christine Lagarde, Managing Director, International Monetary Fund and German Chancellor Angela Merkel attend the W20 Summit under the motto "Inspiring women: scaling up women's entrepreneurship" in Berlin, Germany, April 25, 2017. REUTERS/Hannibal Hanschke

Ivanka Trump, daughter and adviser of U.S. President Donald Trump, talks to Joe Kaeser, chairman of Siemens and a trainee when visiting the Siemens Technik Akademie after she participated in the W20 Summit in Berlin, Germany, April 25, 2017. REUTERS

Ivanka Trump, daughter and adviser of U.S. President Donald Trump, visits the Holocaust Memorial in Berlin, Germany, April 25, 2017. REUTERS/Michael Sohn

Daughter of U.S. President Ivanka Trump, German Chancellor Angela Merkel and Queen Maxima of the Netherlands, UN Secretary General's Special Advocate for Inclusive Finance for Development and Honorary Chair of the G20 Global Partnership for Financial Inclusion arrive for the family photo at the W20 Summit under the motto "Inspiring women: scaling up women's entrepreneurship" in Berlin, Germany, April 25, 2017. REUTERS/Fabrizio Bensch

Daughter of U.S. President Ivanka Trump visits the Holocaust Memorial in Berlin, Germany, April 25, 2017. REUTERS/Hannibal Hanschke

Daughter of U.S. President Ivanka Trump attends the W20 Summit under the motto "Inspiring women: scaling up women's entrepreneurship" in Berlin, Germany, April 25, 2017. REUTERS/Hannibal Hanschke

Ivanka Trump, daughter and adviser of U.S. President Donald Trump, visits the Holocaust Memorial in Berlin, Germany, April 25, 2017. REUTERS/Michael Sohn/Pool - RTS13VD4

Daughter of U.S. President Ivanka Trump and German Chancellor Angela Merkel arrive at the W20 Summit under the motto "Inspiring women: scaling up women's entrepreneurship" in Berlin, Germany, April 25, 2017. REUTERS/Hannibal Hanschke

Daughter of U.S. President Ivanka Trump visits the Holocaust Memorial in Berlin, Germany, April 25, 2017. REUTERS/Fabrizio Bensch

Ivanka Trump, daughter and adviser of U.S. President Donald Trump, and German Chancellor Angela Merkel attend a dinner in Berlin, Germany, April 25, 2017. REUTERS/Michael Sohn

Chrystia Freeland, Minister for Foreign Affairs of Canada, Daughter of U.S. President Ivanka Trump, Stephanie Bschorr, President Association of German Women Entrepreneurs (Verband deutscher Unternehmerinnen), German Chancellor Angela Merkel and Queen Maxima of the Netherlands, UN Secretary General's Special Advocate for Inclusive Finance for Development and Honorary Chair of the G20 Global Partnership for Financial Inclusion at the family photo at the W20 Summit under the motto "Inspiring women: scaling up women's entrepreneurship" in Berlin, Germany, April 25, 2017. REUTERS/Fabrizio Bensch

Daughter of U.S. President Ivanka Trump visits the Holocaust Memorial in Berlin, Germany, April 25, 2017. REUTERS/Hannibal Hanschke

Daughter of U.S. President Ivanka Trump during the W20 Summit under the motto "Inspiring women: scaling up women's entrepreneurship" in Berlin, Germany, April 25, 2017. REUTERS/Hannibal Hanschke

Ivanka Trump, daughter and adviser of U.S. President Donald Trump, talks to a trainee when visiting the Siemens Technik Akademie after she participated in the W20 Summit in Berlin, Germany, April 25, 2017. REUTERS/Michael Sohn