Donald Trump — A win for Trump inches him closer to securing an outright majority of Republican delegates — an outcome that remains in limbo and has prompted Cruz to mount a spirited campaign to force a contested convention. Hillary Clinton — A victory would provide a boost of momentum after a blitz of recent primary and caucus wins by her sole rival, Sanders. Unlike Trump, Clinton is lightyears ahead in the delegate count that it is close to impossible for Sanders to catch up. Bernie Sanders — The Vermont senator's campaign has played down his prospects in New York, citing the state’s closed primary, which does not allow the participation of independents. Ted Cruz — Like Sanders, Cruz is bracing for a loss in "The Big Apple," polling behind not only Trump in recent surveys but also Ohio governor John Kasich.