"Every woman lied when they came forward to hurt my campaign," Trump said during remarks in Gettysburg, Pennsylvania. "Total fabrication. The events never happened. Never. All of these liars will be sued after the election is over."
He added that a "simple phone call" to major news outlets "gets them wall-to-wall coverage with virtually no fact-checking ever."
In the last two weeks, at least 10 women have come forward accusing Trump of inappropriately touching them. Their allegations came after a 2005 videotape surfaced of Trump bragging about being able to grope women and get away with it.
Trump often threatens to file lawsuits without actually doing so. Earlier this month, he threatened
to sue The New York Times when it published assault allegations against him, but nearly two weeks later, he has declined to follow through.
Trump went on to suggest Saturday that Hillary Clinton's campaign was behind the women's allegations.
"It was probably the (Democratic National Committee) and Hillary's campaign who put forward these liars with their fabricated stories," he said. "But we'll probably find out later through litigation, which we're so looking forward to."
Asked about Trump's claim, Clinton, speaking to reporters aboard her campaign plane Saturday night, simply said, "That's just not accurate."
Trump accusers respond
Lisa Bloom, who represents Jill Harth, who has accused Trump of making unwanted sexual advances on her on two separate occasions in the early 1990s, replied to Trump on Twitter Saturday afternoon.
"If Trump sues accusers we then have subpoena power to require not only Trump but all his enablers to appear for depositions. A field day," Bloom said as part of a series of tweets.
Cathy Heller, who alleged last week
that Trump kissed her without her permission in Florida 20 years ago, told CNN, "I hope the threats do not deter others who have something to say."
Temple Taggart, who has also accused
Trump of kissing her without her consent, told CNN she wasn't surprised by Trump's threat.
"Regardless, it's still disappointing to think that Mr. Trump lacks enough humility and decency to simply come clean and admit his part in all of this rather than attempt to conceal the truth and silence his accusers by threatening a lawsuit," Taggart said.
Gloria Allred, the women's rights attorney who is representing three of Trump's accusers, predicted Trump's threat wouldn't deter other women from coming forward.
"If Mr. Trump thought that such bullying tactics would silence his accusers and prevent other women from coming forward, he will be sorely disappointed. Women will not be intimidated into silence by Donald Trump," Allred said during a news conference in Los Angeles Saturday.