Bernie Sanders Wins New Hampshire

Concord, New Hampshire—Two days before New Hampshire’s first-in-the-nation primary, Bernie Sanders challenged a crowd of young supporters gathered at Keene State College to lift him to victory: “Let us win here in New Hampshire, let us win the Democratic nomination, let us defeat Donald Trump, let us transform this country, let us go forward together.”

On Tuesday, New Hampshire did its part. Now, the senator must convince voters in upcoming caucus and primary states that he will make the rest of the pieces fall into place.

The Sanders campaign must...