APTOPIX Obama(01 of10)
Open Image ModalPresident Barack Obama leaves after speaking about the economy, Iraq, and Ukraine, Thursday, Aug. 28, 2014, in the James Brady Press Briefing Room of the White House in Washington, before convening a meeting with his national security team on the militant threat in Syria and Iraq. (AP Photo/Evan Vucci) (credit:ASSOCIATED PRESS)
US-POLITICS-OBAMA(02 of10)
Open Image ModalUS President Barack Obama holds a press conference in the Brady Press Briefing Room at the White House in Washington, DC, August 28, 2014. Obama said Thursday he would send his Secretary of State John Kerry to the Middle East to build support in the region against Islamic State (IS) jihadists. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/Getty Images) (credit:SAUL LOEB via Getty Images)
US-POLITICS-OBAMA(03 of10)
Open Image ModalUS President Barack Obama holds a press conference in the Brady Press Briefing Room at the White House in Washington, DC, August 28, 2014. Obama said Thursday it was plain for the world to see that Russian forces were fighting in Ukraine. Obama said in a press briefing he planned to host Ukrainian President Petro Poroshenko at the White House in September to discuss the escalating crisis. AFP PHOTO / Mandel NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images) (credit:MANDEL NGAN via Getty Images)
US-POLITICS-OBAMA(04 of10)
Open Image ModalUS President Barack Obama holds a press conference in the Brady Press Briefing Room at the White House in Washington, DC, August 28, 2014. Obama said Thursday it was plain for the world to see that Russian forces were fighting in Ukraine. Obama said in a press briefing he planned to host Ukrainian President Petro Poroshenko at the White House in September to discuss the escalating crisis. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/Getty Images) (credit:SAUL LOEB via Getty Images)
Obama(05 of10)
Open Image ModalPresident Barack Obama smiles as he takes questions about the economy, Iraq, and Ukraine, Thursday, Aug. 28, 2014, in the James Brady Press Briefing Room of the White House in Washington, before convening a meeting with his national security team on the militant threat in Syria and Iraq. (AP Photo/Charles Dharapak) (credit:ASSOCIATED PRESS)
Obama(06 of10)
Open Image ModalPresident Barack Obama speaks the economy, Iraq, and Ukraine, Thursday, Aug. 28, 2014, in the James Brady Press Briefing Room of the White House in Washington, before convening a meeting with his national security team on the militant threat in Syria and Iraq. (AP Photo/Charles Dharapak) (credit:ASSOCIATED PRESS)
Obama(07 of10)
Open Image ModalPresident Barack Obama arrives in the James Brady Press Briefing Room of the White House in Washington, Thursday, Aug. 28, 2014, to speak about the economy, Iraq, and Ukraine, before convening a meeting with his national security team on the militant threat in Syria and Iraq. (AP Photo/Evan Vucci) (credit:ASSOCIATED PRESS)
Obama(08 of10)
Open Image ModalPresident Barack Obama speaks about the economy, Iraq, and Ukraine, Thursday, Aug. 28, 2014, in the James Brady Press Briefing Room of the White House in Washington, before convening a meeting with his national security team on the militant threat in Syria and Iraq. (AP Photo/Manuel Balce Ceneta) (credit:ASSOCIATED PRESS)
Obama(09 of10)
Open Image ModalPresident Barack Obama takes questions in the James Brady Press Briefing Room at the White House in Washington, Thursday, Aug. 28, 2014, before convening a meeting with his national security team on the militant threat in Syria and Iraq. Obama also spoke about the economy and Ukraine. (AP Photo/Charles Dharapak) (credit:ASSOCIATED PRESS)
Obama(10 of10)
Open Image ModalPresident Barack Obama leaves the podium after speaking in the James Brady Press Briefing Room at the White House in Washington, Thursday, Aug. 28, 2014, before convening a meeting with his national security team on the militant threat in Syria and Iraq. Obama also spoke about the economy and Ukraine. (AP Photo/Charles Dharapak) (credit:ASSOCIATED PRESS)