Donald Trump defended himself Thursday against Hillary Clinton's efforts to paint him and his campaign as racist, accusing Democrats of falling back on a straw man argument because they can't win on policy.

"The news reports are that Hillary Clinton is going to try to accuse this campaign and the millions of decent Americans – all of you, this movement … who support this campaign, your campaign, of being racists, which we're not," Trump said at a rally in Manchester, New Hampshire.

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His remarks Thursday were a direct pre-buttal to a speech Clinton is expected to deliver in Nevada later Thursday afternoon, in which she will outline Trump's closeness to the so-called "alt-right," a recent far-right movement associated with white nationalism and anti-Semitism.

"It's the oldest play in the Democratic playbook," Trump said. "When Democratic policies fail, they are left with only this one tired argument: 'You're racist, you're racist, you're racist.' They keep saying it, 'You're racist.' It's a tired, disgusting argument, and it's so totally predictable."

"It's the last refuge of the discredited politician," he continued. "They keep going back to this same well, but the well has run dry."

The Clinton campaign released a video Thursday morning featuring a man identified as a Ku Klux Klan imperial wizard describing his support for Trump and Trump's policies. The video also attacked Trump's new campaign chief executive, Steve Bannon, who previously ran Breitbart News, considered by many to be a hub for alt-right views.

In Manchester, Trump defended himself and his supporters, saying that the desire for a secure border and to keep terrorists out of the county does not make people racists.

"They are patriotic Americans of all backgrounds who want their jobs protected and their country kept safe," he said. "I will never apologize for pledging to enforce and uphold every single law of the United States, and to make my immigration priority defending and protecting American citizens above every other single consideration."

Clinton, he charged, was only interested in African-American voters and Latinos so far as they could help her win – but then she would abandon them until the next election came around.

"So what does she do when she can't defend her record? That's right, she lies, she lies," he said. "She smears, and she paints decent Americans, you, as racists. She bullies voters who only want a better future and tries to intimidate them out of voting for change."