The Washington Post published this editorial.

Trump said at the convention that he is the only one that can fix all our problems. Only dictators think that they are “the only one” and the salvation of the nation. That’s scary.

Trump has said that he will not necessarily support our NATO allies, as we have long pledged to do. The Baltic nations must be terrified as he withdraws America’s promise.

Trump has said he will appoint judges to the Supreme Court in the mold of Justice Scalia.

Trump has said he will eliminate gun-free zones in and around schools.

Here is the beginning of the editorial:

DONALD J. TRUMP, until now a Republican problem, this week became a challenge the nation must confront and overcome. The real estate tycoon is uniquely unqualified to serve as president, in experience and temperament. He is mounting a campaign of snarl and sneer, not substance. To the extent he has views, they are wrong in their diagnosis of America’s problems and dangerous in their proposed solutions. Mr. Trump’s politics of denigration and division could strain the bonds that have held a diverse nation together. His contempt for constitutional norms might reveal the nation’s two-century-old experiment in checks and balances to be more fragile than we knew.

Any one of these characteristics would be disqualifying; together, they make Mr. Trump a peril. We recognize that this is not the usual moment to make such a statement. In an ordinary election year, we would acknowledge the Republican nominee, move on to the Democratic convention and spend the following months, like other voters, evaluating the candidates’ performance in debates, on the stump and in position papers. This year we will follow the campaign as always, offering honest views on all the candidates. But we cannot salute the Republican nominee or pretend that we might endorse him this fall. A Trump presidency would be dangerous for the nation and the world.