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Republican presidential candidate Donald Trump said Saturday he will sue 11 women who accused him in the last few weeks of past sexual misconduct, calling them all “liars.”

“Every woman lied when they came forward to hurt my campaign,” Trump said at a campaign rally in Gettysburg, Pa. “Total fabrication. The events never happened. Never. All of these liars will be sued after the election is over."

But celebrity attorney Gloria Allred – who is representing three of the women, including his most recent accuser, the porn star Jessica Drake -- told FOX411 that some of Trump's accusers could sue the GOP nominee whether or not Trump brings his promised lawsuits.

“If Mr. Trump does sue them, I would recommend that they file a lawsuit against him for defamation,” Allred told FOX411. “However, one or more of the individuals who have accused Mr. Trump of inappropriate sexual conduct may decide to sue him for defamation, even if Mr. Trump does not sue them.”

Criminal defense attorney Benjamin Cheeks said any woman who Trump called a liar could have a defamation case if she can prove in court she’s telling the truth about Trump’s alleged conduct, and that she was damaged by his claims that she lied about it.

“If one woman was a doctor, nurse, journalist, or some other profession where credibility a hallmark of their profession, and she started to lose business or trust within the community as a direct result of Mr. Trump calling her a liar, then her slander claim would have merit,” he explained.

New York-based Defense Attorney Lance Fletcher agreed. “Going on the offense is probably the best option if you are after monetary damages and/or if you have a strong case,” he said. “Truth is a defense to defamation.”

Jill Harth was the first woman to publicly accuse Trump of non-consensual sexual behavior. Harth, who did business with Trump, alleged that from 1992 to 1997 he made sexual advances towards her and groped her under her dress. She even filed a lawsuit in 1997 against him, which ended in a settlement.

Her lawyer Lisa Bloom told FOX411 in a statement that if Harth were to sue Trump again: “In that lawsuit I would take the deposition of Trump and all of his enablers, and subpoena his business and personal records as well as any recordings that may exist in which he brags about sexual assault, such as the ‘Access Hollywood’ recording and potentially, ‘The Apprentice’ raw footage. I reject Donald Trump’s effort to intimidate and silence women.”

FOX411 reached out to Donald Trump's personal and campaign reps but did not receive comment.