Republican presidential front-runner Donald Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE on Monday mistakenly referred to the Sept. 11, 2001, terrorist attacks as “7-11.”

“I was down there, and I watched our police and our firemen, down on 7-11, down at the World Trade Center, right after it came down, and I saw the greatest people I’ve ever seen in action," he said during a rally Monday.

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"I saw the bravest people I’ve ever seen, including the construction workers, including every person down there,” he continued.

“That’s what New York values are about.”

Trump was campaigning in Buffalo ahead of the Empire State’s primary on Tuesday.