 He's hopeful that polls are right and that the centre-left Labour Party may win a huge mandate, ending 14 years of Conservative Party rule. If Labour wins, the next prime minister would be its leader, Keir Starmer, a human rights lawyer and prosecutor with a knighthood, who's been the leader of the opposition in Parliament for the past four years. If polls are right and he does win, he'd meet with the king and then move into 10 Downing Street tomorrow. Lauren Freyer, NPR News, London.