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WASHINGTON, USA - OCTOBER 2: US President Barak Obama speaks during a press conference at the White House in Washington, USA on October 2, 2015. During the press conference he announced the resignation of Arnie Duncan as Secretary of Education and appointed John King as his temporary replacement. He also answered question on gun control, Russia, and the situation in Syria. (Photo by Samuel Corum/Anadolu Agency/Getty Images)

WASHINGTON, USA - OCTOBER 2: US President Barak Obama speaks during a press conference at the White House in Washington, USA on October 2, 2015. During the press conference he announced the resignation of Arnie Duncan as Secretary of Education and appointed John King as his temporary replacement. He also answered question on gun control, Russia, and the situation in Syria. (Photo by Samuel Corum/Anadolu Agency/Getty Images)