Britain's dead-heat election 'down to the wire' on polling day

Final opinion polls showed Prime Minister David Cameron's Conservatives and Ed Miliband's opposition Labour Party almost in a dead heat, indicating neither will win enough seats for an outright majority in the 650-seat parliament. "This race is going to be the closest we have ever seen," Miliband told supporters in Pendle, northern England, on the eve of the vote. "It is going to go down to the wire." Cameron said only his Conservatives could deliver strong, stable