PHILADELPHIA, USA - JULY 28: U.S. President Barack Obama (L) and the nominee of the Democratic Party for President of the United States Hillary Clinton (R) attend a congress ahead of 58th Presidential election on November 08, in Philadelphia, USA on July 28, 2016. Hillary Clinton is the first female Presidential nominee in U.S. history. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 28: U.S. President Barack Obama (L) and the nominee of the Democratic Party for President of the United States Hillary Clinton (R) wave to Democratic Party supporters at congress hall ahead of 58th Presidential election on November 08, at Democratic Party Congress in Philadelphia, USA on July 28, 2016. Hillary Clinton is the first female Presidential nominee in U.S. history. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 28: U.S. President Barack Obama (L) and the nominee of the Democratic Party for President of the United States Hillary Clinton (R) hug each other during a congress ahead of 58th Presidential election on November 08, in Philadelphia, USA on July 28, 2016. Hillary Clinton is the first female Presidential nominee in U.S. history. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 28: U.S. President Barack Obama (L) and the nominee of the Democratic Party for President of the United States Hillary Clinton (R) wave to Democratic Party supporters at congress hall ahead of 58th Presidential election on November 08, at Democratic Party Congress in Philadelphia, USA on July 28, 2016. Hillary Clinton is the first female Presidential nominee in U.S. history. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 28: U.S. President Barack Obama (L) and the nominee of the Democratic Party for President of the United States Hillary Clinton (R) hug each other during a congress ahead of 58th Presidential election on November 08, in Philadelphia, USA on July 28, 2016. Hillary Clinton is the first female Presidential nominee in U.S. history. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 28: U.S. President Barack Obama waves to Democratic Party supporters at congress hall ahead of 58th Presidential election on November 08, at Democratic Party Congress in Philadelphia, USA on July 28, 2016. Hillary Clinton is the first female Presidential nominee in U.S. history. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 28: U.S. President Barack Obama delivers a speech during a congress ahead of 58th Presidential election on November 08, in Philadelphia, USA on July 28, 2016. Hillary Clinton is the first female Presidential nominee in U.S. history. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 28: U.S. President Barack Obama delivers a speech during a congress ahead of 58th Presidential election on November 08, in Philadelphia, USA on July 28, 2016. Hillary Clinton is the first female Presidential nominee in U.S. history. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 28: U.S. President Barack Obama delivers a speech during a congress ahead of 58th Presidential election on November 08, in Philadelphia, USA on July 28, 2016. Hillary Clinton is the first female Presidential nominee in U.S. history. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 27: A supporter of the Democratic Presidential Nominee Hillary Clinton is seen at Wells Fargo Center ahead of 58th Presidential election on November 08, at Democratic Party Congress in Philadelphia, USA on July 27, 2016. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 27: A supporter of the Democratic Presidential Nominee Hillary Clinton is seen at Wells Fargo Center ahead of 58th Presidential election on November 08, at Democratic Party Congress in Philadelphia, USA on July 27, 2016. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 27: Democratic Party Congress is held at Wells Fargo Center ahead of 58th Presidential election on November 08, in Philadelphia, USA on July 27, 2016. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 27: Democratic Party supporters hold banners at Wells Fargo Center during a speech of the former President Bill Clinton, in support of the Democratic Presidential Nominee Hillary Clinton, ahead of 58th Presidential election on November 08, at Democratic Party Congress in Philadelphia, USA on July 27, 2016. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 27: Former US President Bill Clinton attends a congress at Wells Fargo Center in support of the Democratic Presidential Nominee Hillary Clinton, ahead of 58th Presidential election on November 08, at Democratic Party Congress in Philadelphia, USA on July 27, 2016. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 28: United States Senator Tim Kaine delivers a speech at congress hall ahead of 58th Presidential election on November 08, at Democratic Party Congress in Philadelphia, USA on July 28, 2016. Hillary Clinton is the first female Presidential nominee in U.S. history. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 28: United States Senator Tim Kaine and his wife Anne Holton greets supporters at congress hall ahead of 58th Presidential election on November 08, at Democratic Party Congress in Philadelphia, USA on July 28, 2016. Hillary Clinton is the first female Presidential nominee in U.S. history. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 28: Supporters are seem at congress hall ahead of 58th Presidential election on November 08, at Democratic Party Congress in Philadelphia, USA on July 28, 2016. Hillary Clinton is the first female Presidential nominee in U.S. history. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 28: Supporters are seem at congress hall ahead of 58th Presidential election on November 08, at Democratic Party Congress in Philadelphia, USA on July 28, 2016. Hillary Clinton is the first female Presidential nominee in U.S. history. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 28: Supporters are seem at congress hall ahead of 58th Presidential election on November 08, at Democratic Party Congress in Philadelphia, USA on July 28, 2016. Hillary Clinton is the first female Presidential nominee in U.S. history. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 28: Supporters are seem at congress hall ahead of 58th Presidential election on November 08, at Democratic Party Congress in Philadelphia, USA on July 28, 2016. Hillary Clinton is the first female Presidential nominee in U.S. history. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 28: Supporters are seem at congress hall ahead of 58th Presidential election on November 08, at Democratic Party Congress in Philadelphia, USA on July 28, 2016. Hillary Clinton is the first female Presidential nominee in U.S. history. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 28: Singer Lenny Kravitz performs at congress hall ahead of 58th Presidential election on November 08, at Democratic Party Congress in Philadelphia, USA on July 28, 2016. Hillary Clinton is the first female Presidential nominee in U.S. history. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 27: Oscar award-winning actress Meryl Streep delivers a speech at Wells Fargo Center in support of the Democratic Presidential Nominee Hillary Clinton, ahead of 58th Presidential election on November 08, at Democratic Party Congress in Philadelphia, USA on July 27, 2016. ( Volkan Furuncu - Anadolu Agency )

Demokrat Parti’nin Philadelphia kentindeki kongresinde 2016 başkanlık seçimleri için resmen adaylığı ilan edilen Hillary Clinton, ülkesinin tarihindeki ilk kadın başkan adayı oldu. Kongrede ABD Başkan Yardımcısı Joe Biden konuşma yaptı. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 28: U.S Vice President Joe Biden delivers a speech at congress hall ahead of 58th Presidential election on November 08, at Democratic Party Congress in Philadelphia, USA on July 28, 2016. Hillary Clinton is the first female Presidential nominee in U.S. history. ( Volkan Furuncu - Anadolu Agency )

PHILADELPHIA, USA - JULY 28: U.S Vice President Joe Biden and his wife Jill Biden greet supporters at congress hall ahead of 58th Presidential election on November 08, at Democratic Party Congress in Philadelphia, USA on July 28, 2016. Hillary Clinton is the first female Presidential nominee in U.S. history. ( Volkan Furuncu - Anadolu Agency )