The Labour leader's 'brush-by' with Barack Obama is designed to help fashion the image of an international statesman in waiting.
President Barack Obama is about to deliver a highly anticipated speech in which he is expected to answer criticism of his foreign policy.
President Obama delivered gag after gag at the annual event - targeting Fox News and joking about the NSA security scandal among others.
President Barack Obama said all Americans "feel the ache" of the loss of James Foley, the US journalist beheaded in a video released by Islamic State militants.
Obama said Foley was "a man who lived for his work, who courageously told the stories of his fellow human beings and was liked and loved by friends and family."
"All of us mourn his loss," the President said.
President Barack Obama has stressed that Islamic State "speaks for no religion".
"No just God would stand for what they did yesterday and what they do every single day," he said in response to the video released showing the beheading of US journalist James Foley.
"Isil has no ideology of any value to any human beings their ideology is bankrupt," Obama said. "Isil has no place in the 21st Century."
President Barack Obama has said the "entire world is appalled" by the murder of US journalist James Foley.
"Jim was taken from us in an act of violence that has shocked the conscience of the whole world," Obama said at a press conference.
US intelligence officials earlier confirmed that the Islamic State video of US journalists James Foley and Steven Sotloff - who is still believed to be held captive - was authentic.
US President Barack Obama has said he does "not expect there to be an additional operation to evacuate people" from Mount Sinjar in Iraq.
In a statement delivered at the White House, he said that "the situation on the mountain has greatly improved".
US President Barack Obama has signed a book of condolence for the victims of the MH17 air disaster at the Netherlands embassy in America.
After signing the book, Obama said: "[I wanted to] express solidarity with the people of the Netherlands."
He added that the US will work with the country to ensure "justice is done".
Ed Miliband is hoping his "brush-by" visit with Barack Obama will show he is ready to lead Britain on the global stage.
Ahead of his visit to the White House, the Labour leader says he is determined to create a "post-Iraq" relationship with the United States.
The White House said Barack Obama and Ed Miliband "affirmed the strong ties that bind the United States and the United Kingdom" during their brief meeting at the White House today.
– White House statement
President Obama joined National Security Advisor Rice’s meeting today with Mr. Ed Miliband, leader of the United Kingdom’s opposition Labour Party.
Mr. Miliband was meeting with Ambassador Rice to discuss issues of shared concern, including the situations in Ukraine, Israel/Gaza, and Iraq.
Ed Miliband has met with US President Barack Obama at the White House, conducting what the Labour leader called "warm and friendly" talks.
I've just had warm and friendly talks with President Obama discussing Ukraine, Gaza, Europe and the economy.
Britain in Europe working in partnership with America is the best way to promote stability and prosperity across the globe.
President Barack Obama announced more sanctions on Russia yesterday, stating that Russia is not doing enough to halt the flow of weapons and fighters into eastern Ukraine.
Speaking to reporters at the White House he said:
– President Obama
These sanctions are significant, but they are also targeted, designed to have the maximum impact on Russia while limiting any spillover impact on American companies or those of our allies.
Ive repeatedly made it clear that Russia must halt the flow of weapons and fighters across the border into Ukraine.
So far, Russia has failed to take any of the steps that I mentioned.