A voter's dogs sit tied to a Polling Station sign as their owner casts a vote in Hull, north east England on May 7, 2015, as Britain holds a general election. Polls opened Thursday in Britain's closest general election for decades with voters set to decide between the Conservatives of Prime Minister David Cameron, Ed Miliband's Labour and a host of smaller parties. AFP PHOTO / OLI SCARFF (Photo credit should read OLI SCARFF/AFP via Getty Images)
