Trump called critics of his address "haters," saying that the latest round of violence in the Middle East justifies the grim view of world affairs he presented in his speech.
"I think the only negativity, and, you know, the hate, I call them the haters, and that's fine. But the only negative reviews were, "A little dark." And the following day, they had another attack, and then today you see what happened in Afghanistan with many, many people killed," he said.
More from NBC News:
Trump Aide Dismisses Russian Involvement in DNC Email Leak
Clinton Set to Make History in a City Known for It
Kaine Returns to Longtime Parish As His New Life Begins
In the interview, Trump expanded on his plan to restrict immigration from areas with high levels of terrorism, insisting that his rhetoric is not a "roll back" of his initial proposal to ban all Muslim immigrants.
"I actually don't think it's a rollback. In fact, you could say it's an expansion. I'm looking now at territory. People were so upset when I used the word Muslim. Oh, you can't use the word Muslim. Remember this. And I'm okay with that because I'm talking territory instead of Muslim," he said.
"But just remember this," Trump added. "Our Constitution is great. But it doesn't necessarily give us the right to commit suicide, okay? Now, we have a religious, you know, everybody wants to be protected. And that's great. And that's the wonderful part of our Constitution. I view it differently."
The Republican nominee told host Chuck Todd that he stands by his embrace of the U.K.'s decision to leave the European Union, saying that he does not worry about how his comments could impact the world economy. Calling the World Trade Organization a "disaster," he reiterated his frustration with member countries of NATO who "aren't paying what they are supposed to be paying," as well as his long-standing criticism of NAFTA.
Trump also dismissed the congressional run of former KKK leader David Duke, who said he was inspired by Trump to mount a bid.
Noting that he was criticized for not disavowing Duke's endorsement earlier, he said flatly, "Rebuked, done."
Watch Meet the Press for the full interview.