This afternoon hundreds of thousands are expected to gather in Washington as President Barack Obama is sworn in for a second term in the White House.
But as the world's eyes are trained on the Capitol, in Liverpool the Walker Art Gallery is hosting artist Nicola Green's In Seven Days... - an exhibition inspired by her time following Obama on his 2008 Presidential campaign.
Nicola told the Post what is was like to meet and spend time with the most powerful man in the world.




