One of the last questions asked of Hillary Clinton and Donald Trump at Monday night’s debate at Hofstra University deserves to be revisited. Moderator Lester Holt asked both candidates whether, if they lost the election, they accept the results as the “will of the voters.” Both indicated that yes, they would (although Mr. Trump agreed to support Ms. Clinton so reluctantly — it required a follow-up question from Mr. Holt — that reporters felt compelled to confirm his position afterward). In any other presidential race, a question about recognizing the will of the voters would be regarded as a softball — the answer so obvious that surely no debate prep was needed. After all, what kind of presidential nominee seeks to delegitimize the essential process that sustains the greatest democracy on earth? But these are not ordinary times. The nation’s voting system faces a very real threat from computer hackers. That much was made clear with the breach of a voter information database in Illinois this summer. Election boards across the country — including Maryland’s — were put on alert by federal authorities out of concern for potential vulnerabilities.