A spokesman for Democratic presidential front-runner Hillary Clinton Hillary Diane Rodham ClintonDemocratic groups using Bloomberg money to launch M in Spanish language ads in Florida The Hill's Campaign Report: Presidential polls tighten weeks out from Election Day More than 50 Latino faith leaders endorse Biden MORE on Monday refused to offer an apology to GOP rival Donald Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE for claiming the outspoken billionaire has been used in terror recruitment videos.

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“Hell no," Clinton campaign spokesman Brian Fallon told The Wall Street Journal.

"Hillary Clinton will not be apologizing to Donald Trump for correctly pointing out how his hateful rhetoric only helps ISIS recruit more terrorists," Fallon added.

Trump earlier on Monday demanded an apology from Clinton for claiming that he was being used in Islamic State in Iraq and Syria (ISIS) recruitment videos, saying Clinton "always lies."

"I demand an apology from Hillary Clinton for the disgusting story she made up about me for purposes of the debate. There never was a video," Trump tweeted.

Clinton cited Trump's controversial remarks on Muslims to say during the Democratic debate over the weekend that Trump "is becoming ISIS's best recruiter."

“They are going to people showing videos of Donald Trump insulting Islam and Muslims in order to recruit more radical jihadists,” the former secretary of State said.

Her campaign stood by the claim on Sunday, with campaign Chairman John Podesta describing it as "a very fair charge" given Trump's regular appearance on television and social media.