Barack Obama

Mannequin challenge at the White House. Video, 00:00:30Mannequin challenge at the White House

Obama's moving tribute to Ellen DeGeneres. Video, 00:01:58Obama's moving tribute to Ellen DeGeneres

Obama hails Ellen's 'incredible burden'

Obama pokes fun at awards ceremony. Video, 00:01:38Obama pokes fun at awards ceremony

Is Melania's White House snub unusual?

Being a 'First Kid' in the White House

Obama may weigh in on Trump after office

Australian PM's Obama 'farewell selfie'

Obama bans new oil drilling in Arctic

The six-year-old who met President Obama. Video, 00:00:42The six-year-old who met President Obama

May: West must keep pressure on Russia

Obama and EU keep up pressure on Russia

Who will dress America's new first family?

Obama's hopes for Trump on Russia. Video, 00:02:15Obama's hopes for Trump on Russia

Obama urges Trump to stand up to Russia

Why Germany is sorry to see Obama go

In pictures: Obama-Merkel relationship

Nashville: Music industry vs healthcare. World Have Your Say. Video, 00:01:23Nashville: Music industry vs healthcare

Ellen among stars honoured by Obama

No way back from globalisation - Obama

Obama defends health of US democracy

Obama warns of 'crude nationalism'

Obama seeks to allay Trump concerns