Mark Cuban: I 'don't have any doubt' about the allegations against Trump because 'I know' a victim

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Billionaire businessman Mark Cuban told CNN on Tuesday that he has no doubts about the onslaught of sexual-assault allegations recently levied against Donald Trump because he personally knows someone who had a similar experience with the now-Republican presidential nominee.

SEE ALSO: Shocking assault allegations surface against Bill Clinton

"I know one, and it just didn't happen recently,"Cuban told CNN host Don Lemon. "I'd — my friend reminded and it was from 2000 and she — you know, I don't expect her to come forward. I wouldn't recommend she come forward."

The business mogul added that he also knows "somebody else" from two years ago "that won't come forward."

RELATED: Donald Trump's response about the allegations during the last presidential election:

"So, you know, it's not anything that caught me by surprise," Cuban said. "I mean, that's what I can tell you. I can tell you — my friend that was dating this one woman, you know, just — you know, reminded me the story they told me right after it happened and put it all down in detail. And, obviously, I remembered it."

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Dallas Mavericks owner Mark Cuban stands behind the Dallas bench in the opening minutes against the New York Knicks during their NBA game February 24, 2014 at Madison Square Garden in New York. The Mavericks won, 110-108. AFP PHOTO/Stan HONDA (Photo credit should read STAN HONDA/AFP/Getty Images)
PHOENIX, AZ - JANUARY 17: Owner Mark Cuban of the Dallas Mavericks looks on during the NBA game against the Phoenix Suns at US Airways Center on January 17, 2014 in Phoenix, Arizona. The Mavericks defeated the Suns 110-107. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Christian Petersen/Getty Images)
Mark Cuban, billionaire owner of the Dallas Mavericks basketball team, speaks with members of the media as he exits federal court in Dallas, Texas, U.S., on Thursday, Oct. 3, 2013. Cuban said he doesn't recall details of a conversation in which he was allegedly warned that information he received about a company was confidential. Photographer: Mike Fuentes/Bloomberg via Getty Images
Mark Cuban, owner of the Dallas Mavericks basketball team, left, exits federal court in Dallas, Texas, U.S., on Monday, Sept. 30, 2013. Cuban goes to trial over regulators' claims he engaged in insider trading when he sold his stake in a Canadian Internet search company nine years ago. Photographer: Ben Torres/Bloomberg via Getty Images
LOS ANGELES, CA - NOVEMBER 24: TV personality Mark Cuban attends the 2013 American Music Awards Powered by Dodge at Nokia Theatre L.A. Live on November 24, 2013 in Los Angeles, California. (Photo by Charley Gallay/AMA2013/Getty Images for Dodge)
The Los Angeles Lakers' Kobe Bryant (24) is hugged Dallas Mavericks owner Mark Cuban after the Mavs' 90-82 win at the American Airlines Center in Dallas on Friday, Nov. 13, 2015. (Paul Moseley/Fort Worth Star-Telegram/TNS via Getty Images)
PHILADELPHIA,PA - NOVEMBER 16: Owner of the Dallas Mavericks Mark Cuban looks on against the Philadelphia 76ers at Wells Fargo Center on November 16, 2015 in Philadelphia, Pennsylvania NOTE TO USER: User expressly acknowledges and agrees that, by downloading and/or using this Photograph, user is consenting to the terms and conditions of the Getty Images License Agreement. Mandatory Copyright Notice: Copyright 2015 NBAE (Photo by Jesse D. Garrabrant/NBAE via Getty Images)
PHILADELPHIA, PA - NOVEMBER 16: Mark Cuban, owner of the Dallas Mavericks, looks on prior to the game against the Philadelphia 76ers on November 16, 2015 at the Wells Fargo Center in Philadelphia, Pennsylvania. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Mitchell Leff/Getty Images)
LOS ANGELES CA - OCTOBER 29: Mark Cuban, owner of the Dallas Mavericks, follows the action from behind the bench during the third quarter of the basketball game against Los Angeles Clippers at Staples Center October 29, 2015, in Los Angeles California. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Kevork Djansezian/Getty Images)
Mark Cuban, Investor, Entrepreneur and Owner, Dallas Mavericks, offers his critique to finalists at the Global Startup Showcase, as one of four judges at 2015 WSJD Live on October 20, 2015 in Laguna Beach, California. WSJ D Live brings together top CEOs, founders, pioneers, investors and luminaries to explore the most exciting tech opportunities emerging around the world. AFP PHOTO / FREDERIC J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)
Mark Cuban, billionaire owner of the National Basketball Association's (NBA) Dallas Mavericks basketball team, left, and his wife Tiffany Cuban arrive at a state dinner in honor of Chinese President Xi Jinping at the White House in Washington, D.C., U.S., on Friday, Sept. 25, 2015. The U.S. and China announced agreement on broad anti-hacking principles aimed at stopping the theft of corporate trade secrets though President Barack Obama pointedly said he has not ruled out invoking sanctions for violators. Photographer: Andrew Harrer/Bloomberg via Getty Images
Mark Cuban, billionaire owner of the National Basketball Association's (NBA) Dallas Mavericks basketball team, left, and his wife Tiffany Cuban arrive at a state dinner in honor of Chinese President Xi Jinping at the White House in Washington, D.C., U.S., on Friday, Sept. 25, 2015. The U.S. and China announced agreement on broad anti-hacking principles aimed at stopping the theft of corporate trade secrets though President Barack Obama pointedly said he has not ruled out invoking sanctions for violators. Photographer: Andrew Harrer/Bloomberg via Getty Images
SHARK TANK - Lori Greiner, Mark Cuban, Daymond John, Barbara Corcoran, Robert Herjavec and Kevin O'Leary is a 'Shark' on ABC's 'Shark Tank.' (Photo by Bob D'Amico/ABC via Getty Images)
SHARK TANK - Mark Cuban is a 'Shark' on ABC's 'Shark Tank.' (Photo by Bob D'Amico/ABC via Getty Images)
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He continued: "And then I had another person who contacted me after the race started and told me a story. But I don't want to go in since it's all second and third hand, other than to say that it's absolutely factually true. So, I don't have any doubt that we're hearing is true."

A score of women have recently come forward with allegations that Trump made unwanted sexual advances on them in the past. Trump has strongly denied the claims.

SEE ALSO: Rubio warns Trump, GOP against using hacked emails

The flood of accusations came after a leaked 2005 tape showed Trump making a number of crude sexual remarks about women. He later apologized, and said the remarks were just "locker room talk."

Cuban has been a supporter for Democratic presidential nominee Hillary Clinton since he endorsed her at a Pittsburgh rally in July.

He has ripped Trump repeatedly on social media and in interviews, calling him the most "dangerous" presidential candidate he could imagine during a recent interview with Business Insider. Cuban last month offered Trump $10 million to hold a four-hour policy debate with him.

Earlier in the cycle, he was more enthralled by a potential Trump presidency, and at different points said he'd be interested in serving as either Trump's or Clinton's running mate.

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Donald Trump through the years
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Donald Trump through the years
Donald Trump pauses in his apartment 5/20 after receiving the news that the Board of Estimate unanimously approved a 40-year tax abatement plan. Under the plan Trump will purchase and refurbish the Commodore Hotel, which closed into doors 5/18, from the Penn Central Transportation Corp. In return for his $10-million-dollar purchase and up to $100 million face-lifting investment, Trump will have no real estate taxes for 40 years.

(Bettmann via Getty Images)

Real estate developer Donald Trump announces intentions to build a $100 million dollar Regency Hotel.

(Photo by John Pedin/NY Daily News via Getty Images)

Donald Trump with Alfred Eisenpreis, New York City Economic Development Administrator. Sketch of new 1,400 room Renovation project of Commodore Hotel.

(Photo by NY Daily News Archive via Getty Images)

Donald Trump stands behind architect's model of City Hall Plaza.

(Photo by Frank Russo/NY Daily News Archive via Getty Images)

Donald Trump and Ivana Trump attend Roy Cohn's birthday party in February 1980 in New York City.

(Photo by Sonia Moskowitz/Getty Images)

Donna Mills and Donald Trump during 1983 Annual American Image Awards at Sheraton Center in New York City, New York, United States.

(Photo by Ron Galella, Ltd./WireImage)

Donald Trump attends 38th Annual Horatio Alger Awards Dinner on May 10, 1985 at the Waldorf Hotel in New York City.

(Photo by Ron Galella/WireImage)

Portrait of real estate mogul Donald John Trump (b.1946), smiling slightly and facing to his right, 1983. New York.

(Photo by Bachrach/Getty Images)

Boxing promoter Don King holds up the arms of Mike Tyson and former champion Larry Holmes during a press conference here 12/1. Looking on is Donald Trump. The fight will be held at the Trump Plaza Hotel.

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Donald Trump, real estate mogul, entrepreneur, and billionare poses in the foyer of his home in August 1987 in Greenwich, Connecticut.

(Photo by Joe McNally/Getty Images)

Donald Trump Jr. and Donald Trump during 1988 U.S. Open - September 3, 1988 at Flushing Meadows Corona Park in Queens, New York, United States.

(Photo by Ron Galella, Ltd./WireImage)

Ivana Trump and Donald Trump during Mike Tyson vs Michael Spinks Fight at Trump Plaza - June 27, 1988 at Trump Plaza in Atlantic City, New Jersey, United States.

(Photo by Ron Galella/WireImage)

Billionaire Donald Trump and his wife Ivana arrive 04 December 1989 at a social engagement in New York.

(Photo credit should read SWERZEY/AFP/Getty Images)

Donald Trump and Daughter Ivanka Trump during Maybelline Presents 1991 Look of the Year at Plaza Hotel in New York City, New York, United States.

(Photo by Ron Galella/WireImage)

Donald Trump attends 'Hoop-La' Special Olympics Basketball Game on June 25, 1992 at the Plaza Hotel in New York City.

(Photo by Ron Galella/WireImage)

Donald Trump and Joan Rivers during Opening of The Rose Room in the Plaza Hotel at Plaza Hotel Rose Room in New York City, New York, United States.

(Photo by Ron Galella, Ltd./WireImage)

Donald Trump touches 07 April 1993 Marla Maples stomach to confirm published reports that the actress is pregnant with his child. The two arrived for Maples appearance in the Broadway musical 'The Will Rogers Follies'.

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US business tycoon Donald Trump enters the PLaza Hotel in New York past supporters 21 December 1994. Hundreds of supporters showed up at a news conference where Trump denied a New York newspaper report that the Sultan of Brunei had bid 300 million USD to buy the Manhattan hotel.

(Photo credit should read DON EMMERT/AFP/Getty Images)

Donald Trump and Christine Whitman during Opening of New Warner Bros. Store in Trump Plaza Casino at Trump Plaza Casino in Atlantic City, New Jersey, United States.

(Photo by Ron Galella/WireImage)

Donald Trump attends Marc Jacobs Fashion Show on April 4, 1995 at the Plaza Hotel in New York City.

(Photo by Ron Galella/WireImage)

Boxing: IBC Heavyweight Title: View of celebrity businessman Donald Trump and actor Steven Seagal seated ringside during Lennox Lewis vs Tommy Morrison fight at Boardwalk Convention Hall. Atlantic City, NJ. (Photo by John Iacono /Sports Illustrated/Getty Images) 

New York real estate giant Donald Trump poses in his Trump Tower office on a giant letter 'T' on May 8, 1996.

(TIMOTHY A. CLARY/AFP/Getty Images)

Portrait of Marla Maples and her husband, businessman Donald Trump, with their daughter Tiffany, as they pose together at the Mar-a-Lago estate, Palm Beach, Florida, 1996.

(Photo by Davidoff Studios/Getty Images)

Donald Trump and Ron Delsner backstage at a KISS concert at Madison Squre Garden in New York City on July 25, 1996.

(Photo by Ebet Roberts/Redferns)

Donald Trump attending Halloween party thrown by Naomi Campbell and Kate Moss at the Supper Club to kick off Fashion Week.  

(Photo by Richard Corkery/NY Daily News via Getty Images)

Donald Trump open his new building at 1 Center Park West- The new Trump International Hotel and Tower.

(Photo byJames Hughes/NY Daily News via Getty Images)

Donald Trump and his girlfriend Celina Midelfar watch Conchita Martinez and Amanda Coetzer 07 September at US Open in Flushing Meadows, NY.

(TIMOTHY CLARY/AFP/Getty Images)

Celine Dion, husband Rene, Donald Trump & Ivanka Trump

(Photo by KMazur/WireImage)

Entrepreneur Donald Trump and Rev. Al Sharpton speak at a ribbon cutting ceremony for Sharpton's National Action Network Convention April 5, 2002 in New York City. The group aims to further the development of civil rights.

(Photo by Mario Tama/Getty Images)

Donald Trump and his girlfriend Melania Knauss attend the Marc Bouwer/Peta Fall/Winter 2002 Collection show February 14, 2002 during Mercedes-Benz Fashion Week in New York City.

(Photo by George De Sota/Getty Images)

Donald Trump at Madison Square Garden

(Photo by Alexander Hassenstein/Bongarts/Getty Images)

Donald Trump stands on the sidelines before the start of the AFC divisional playoffs between the New England Patriots and Tennessee Titans on January 10, 2004 at Gillette Stadium in Foxboro, Massachusetts. Temperatures have reached as low as 7 degrees in the Foxboro area.

(Photo by Al Bello/Getty Images)

Donald Trump, Visionary Business Leader award honoree, poses with his children Donald Trump Jr. and Ivanka at Fashion Group International's 22nd Annual 'Night Of Stars' at Cipriani's 42nd Street October 27, 2005 in New York City.

(Photo by Evan Agostini/Getty Images)

Eric Trump and Donald Trump attend the Chicago Bulls vs New Jersey Nets game at the IZOD Center on October 31, 2007 in East Rutherford, New York.

(Photo by James Devaney/WireImage)

 Donald Trump delivers a speech with his son Barron after he was honored with the 2,327th star on the Hollywood Walk of Fame on Hollywood Boulevard in Hollywood, CA, 16 January 2007.

(GABRIEL BOUYS/AFP/Getty Images)

Portrait of former model Melania Trump and her husband, businessman Donald Trump, as they sit together at a table during the 16th annual 'Lady in Red' gala, hosted by LIFE (Leaders In Furthering Education), at the Mar-a-Lago club, Palm Beach, Florida, December 4, 2009.

(Photo by Michele Eve Sandberg/Corbis via Getty Images)

Donald Trump sands with Miss Universe 2009 Stefania Fernandez of Venezuela prior to the Miss Universe 2010 Pageant Final at the Mandalay Bay Hotel in Las Vegas on August 23, 2010. Miss Universe is an annual international beauty pageant and along with the Miss World is the most publicized beauty contest in the world. California clothing company Pacific Mills founded the contest 1952 and was acquired by Donald Trump in 1996.

(MARK RALSTON/AFP/Getty Images)

US tycoon Donald Trump arrives to speak at the annual Conservative Political Action Conference (CPAC) at National Harbor, Maryland, outside Washington, on February 27, 2015.

(NICHOLAS KAMM/AFP/Getty Images)

Donald Trump speaks during the NRA-ILA Leadership Forum at the 2015 NRA Annual Meeting & Exhibits on April 10, 2015 in Nashville, Tennessee. The annual NRA meeting and exhibit runs through Sunday.

(Photo by Justin Sullivan/Getty Images)

Real estate mogul and billionaire Donald Trump attends Golf legend Jack Nicklaus' Congressional Gold Medal ceremony in the U.S. Capitol Rotunda March 24, 2015 in Washington, DC. Trump announed on March 18 that he has launched a presidential exploratory committee.

(Photo by Chip Somodevilla/Getty Images)

Businessman Donald Trump speaks to guests gathered for the Republican Party of Iowa's Lincoln Dinner at the Iowa Events Center on May 16, 2015 in Des Moines, Iowa. The event sponsored by the Republican Party of Iowa gave several Republican presidential hopefuls an opportunity to strengthen their support among Iowa Republicans ahead of the 2016 Iowa caucus.

(Photo by Scott Olson/Getty Images)

Republican Presidential Candidate Donald Trump visits his Scottish golf course Turnberry with his children Ivanka Trump and Eric Trump on July 30, 2015 in Ayr, Scotland. Donald Trump answered questions from the media at a press conference.

(Photo by Jeff J Mitchell/Getty Images)

U.S. President-elect Donald Trump speaks at his election night rally in Manhattan, New York, U.S., November 9, 2016.

(REUTERS/Carlo Allegri)

Singer Kanye West and President-elect Donald Trump speak with the press after their meetings at Trump Tower December 13, 2016 in New York.

(TIMOTHY A. CLARY/AFP/Getty Images)

Republican U.S. presidential candidate Donald Trump poses for a photo after an interview with Reuters in his office in Trump Tower, in the Manhattan borough of New York City, U.S., May 17, 2016.

(REUTERS/Lucas Jackson)

 Coverage of the 2016 Republican National Convention from the Quicken Loans Arena in Cleveland, Ohio, which airs on all ABC News programs and platforms. On this final night of the convention, Donald Trump accepts the party's nomination for President of the United States.

(Photo by Ida Mae Astute/ABC via Getty Images) 

U.S. Republican presidential candidate Donald Trump reacts to an answer his wife Melania gives during an interview on NBC's "Today" show in New York, April 21, 2016.

(REUTERS/Brendan McDermid/File Photo)

President-elect Donald Trump speaks to reporters following his meeting with Jack Ma, Chairman of Alibaba Group, meeting at Trump Tower, January 9, 2017 in New York City. President-elect Donald Trump and his transition team are in the process of filling cabinet and other high level positions for the new administration.

(Photo by Drew Angerer/Getty Images)

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