UK Election: Party Leaders Face Off

Less than one week before the UK general election, Prime Minister Theresa May and the leader of the main opposition Labour Party, Jeremy Corbyn, faced questions from the British public in a televised Q&A; how reliable are polls in tracking and predicting election outcomes? Polling expert Professor John Curtice explains; American artist Judy Chicago's special tribute to celebrate the 50th anniversary of the Beatles' Sgt Pepper album.

(Picture: British Prime Minister Theresa May and Labour leader Jeremy Corbyn. Credit: Getty Images)