Liberal Democrat leader Nick Clegg and his wife Miriam Gonzalez Durantez arrive to vote at the Hall Park Centre in Sheffield, England, Thursday May 7, 2015, as Britain takes to the polls in a general election. Polls have opened in Britain's national election, a contest that is expected to produce an ambiguous result, a period of frantic political horse-trading and a bout of national soul-searching. (AP Photo/Jon Super)