Congratulations to Trump and Trump supporters - you've won the first round.
But as Luis says, it's a long road, and Trump can't win the nomination, let alone the general election, unless he can gain support from folks beyond his hard core of Perot/Wallace populists. Nearly half of New Hampshire voters made up their minds in the days before the election, and it appears almost none of them went for Trump. Trump's oxygen remains because his opposition is splintered. As Bigun says, when the field is narrowed to two or three, Trump will be defeated.