Nick Clegg, U.K. deputy prime minister and leader of the Liberal Democrats, speaks as he address delegates at the party's Spring conference in Liverpool, U.K., on Sunday, March 15, 2015. U.K. Deputy Prime Minister Nick Clegg will urge his Liberal Democrat party not to lose heart in the face of opinion polls that suggest they'll lose around half their seats in the coming general election. Photographer: Paul Thomas/Bloomberg via Getty Images
