Real-estate mogul Donald Trump went all-out against presidential rival Ben Carson during an epic Thursday-night speech in Fort Dodge, Iowa.
Among other things, Trump doubled down on his comparison of Carson's supposedly incurable "pathological temper" to child molesters, while both reenacting and questioning Carson's history of violent incidents as a young teenager.
"How stupid are the people of Iowa? How stupid are the people of the country to believe this crap?" Trump asked his supporters of Carson, the only Republican challenging his No. 1 position in the primary polls.
"So here's the good news: He's now saying all of that stuff happened!" Trump exclaimed. "Because otherwise he's a liar."
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Ben Carson through the years
TRUMP GOES OFF: Donald gives epic speech raging against Ben Carson in every way imaginable
BALTIMORE, MD - AUGUST 12: (JAPAN OUT) (VIDEO CAPTURE) In this image from video Dr. Ben Carson talks about his life and education August 12, 2001 in Baltimore, Maryland. Dr. Carson was profiled for a CNN program called 'America's Best: Science and Medicine,' for his preeminence in the field of neurosurgery. (Photo by CNN via Getty Images)
Civil Rights activist Rosa Parks, Ben Carson, Ralph Abernathy and Levy Watkins at Johns Hopkins University during a celebration of the birthday of Martin Luther King Jr, Baltimore, Maryland, 1980. (Photo by Afro American Newspapers/Gado/Getty Images)
Dr. Donlin Long, director of neurosurgery, left, and Dr. Ben Carson director of pediatric neurosurgery at Johns Hopkins Hospital in Baltimore, Md.,, holds a brain model of the conjoined twins who separated in a 22-hour surgery, Sept. 7, 1987. (AP Photo/Fred Kraft)
FILE - In this Sept. 16, 2004, file photo, Dr. Ben Carson, then-director of pediatric neurosurgery at Johns Hopkins Children's Center, holds a model of the heads of conjoined twins Tabea and Lea Block of Lemgo, Germany, during a news conference in Baltimore. Carson is the only 2016 candidate for president who has never led a state or company or run for political office, but the retired neurosurgeon maintains that someone who can lead life-or-death operations surely can run the country. (AP Photo/Chris Gardner, File)
Darius Rucker, Candy Carson and Dr. Ben Carson M.D., president and co-founder of Carson Scholars Fund (Photo by Louis Myrie/WireImage)
President Bush places the Presidential Medal of Freedom on Johns Hopkins University's director of pediatric neurosurgery Dr. Ben Carson, as he takes part in a ceremony for the 2008 recipients of the Presidential Medal of Freedom, Thursday, June 19, 2008, in the East Room at the White House in Washington. (AP Photo/Ron Edmonds)
Johns Hopkins Hospital surgeon Dr. Ben Carson, right, signs a book for Delegate William Frank, R-Baltimore County, in Annapolis, Md., Friday, March 8, 2013 after Carson, who is director of pediatric neurosurgery at Johns Hopkins, spoke at a legislative prayer breakfast. Carson said Friday that while people have been urging him to run for president, he doesnât aspire to run for office. (AP Photo/Brian Witte)
SCOTTSDALE, AZ - SEPTEMBER 5: Dr. Ben Carson is interviewed during a live streaming Web-A-Thon with Wake Up America September 5, 2014 at the Westin Kierland Resort in Scottsdale, Arizona. Carson is a retired neurosurgeon who would run in the 2016 Presidential campaign as a conservative for the Tea Party. (Photo by Laura Segall/Getty Images)
SCOTTSDALE, AZ - SEPTEMBER 5: Dr. Ben Carson speaks as the keynote speaker at the Wake Up America gala Event September 5, 2014 at the Westin Kierland Resort in Scottsdale, Arizona. Carson is a retired neurosurgeon who would run in the 2016 Presidential campaign as a conservative for the Tea Party. (Photo by Laura Segall/Getty Images)
SCOTTSDALE, AZ - SEPTEMBER 5: Dr. Ben Carson (C) chats with guests after a live streaming Web-A-Thon with Wake Up America September 5, 2014 at the Westin Kierland Resort in Scottsdale, Arizona. Carson is a retired neurosurgeon who would run in the 2016 Presidential campaign as a conservative for the Tea Party. (Photo by Laura Segall/Getty Images)
Dr. Ben Carson, professor emeritus at Johns Hopkins School of Medicine, speaks at the Conservative Political Action Conference annual meeting in National Harbor, Md., Saturday, March 8, 2014. Saturday marks the third and final day of the annual Conservative Political Action Conference, which brings together prospective presidential candidates, conservative opinion leaders and tea party activists from coast to coast. (AP Photo/Susan Walsh)
US conservative Ben Carson is surrounded by supporters as he waits to be interviewed at the annual Conservative Political Action Conference (CPAC) at National Harbor, Maryland, outside Washington,DC on February 26, 2015. AFP PHOTO/NICHOLAS KAMM (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
NATIONAL HARBOR, MD - FEBRUARY 26: Ben Carson, former neurosurgeon, addresses the 42nd annual Conservative Political Action Conference (CPAC) February 26, 2015 in National Harbor, Maryland. Carson is the author of 'One Nation: What We Can All Do to Save Americas Future' and 'America the Beautiful: Rediscovering What Made This Nation Great'. Conservative activists attended the annual political conference to discuss their agenda. (Photo by Alex Wong/Getty Images)
US conservative Ben Carson addresses the annual Conservative Political Action Conference (CPAC) at National Harbor, Maryland, outside Washington, DC on February 26, 2015. AFP PHOTO/NICHOLAS KAMM (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
NEW YORK, NY - APRIL 08: Ben Carson attends the National Action Network (NAN) national convention at the Sheraton New York Times Square Hotel on April 8, 2015 in New York City. The network, founded by the Rev. Al Sharpton in 1991 is hosting various politicians, organizers and religious leaders to talk about the nation's most pressing issues. The conservative Carson is widely rumored to be considering a GOP presidential run in 2016. (Photo by Andrew Burton/Getty Images)
Ben Carson arrives to speak during the Conservative Political Action Conference (CPAC) in National Harbor, Md., Thursday, Feb. 26, 2015. (AP Photo/Carolyn Kaster)
DETROIT, MI - MAY 4: Republican Dr. Ben Carson, a retired pediatric neurosurgeon, speaks as he officially announces his candidacy for President of the United States at the Music Hall Center for the Performing Arts May 4, 2015 in Detroit, Michigan. Carson was scheduled to travel today to Iowa, but changed his plans when his mother became critically ill. He now will be traveling to Dallas instead to be with his mother Sonya. (Photo by Bill Pugliano/Getty Images)
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Trump was referring to Carson's memoir, "Gifted Hands," in which the retired neurosurgeon described a series of decades-old attacks against his family and friends.
In recent days, Trump has repeatedly homed in on the part of the book in which Carson wrote, "I had what I only can label a pathological temper — a disease — and this sickness controlled me, making me totally irrational."
"How stupid are the people of Iowa? How stupid are the people of the country to believe this crap?"
Donald Trump, presidential candidate
Carson said he later had an epiphany and became the famously soft-spoken man he is today.
But Trump apparently thinks Carson never got better. The business mogul generated headlines earlier in the day when he compared Carson's "pathological" temper to child molesters during a CNN interview. He doubled down on that comparison during his Thursday-night speech in Iowa.
"I don't want to say what I said, but I'll tell you anyway. I said that if you're a child molester — a sick puppy, you're a child molester — there's no cure for that. There's only one cure; we don't want to talk about that cure. That's the ultimate cure," Trump told his supporters. "If you're a child molester, there's no cure. They can't stop you."
Trump pointed to three of Carson's claimed violent teenaged incidents in particular: attacking his mom with a hammer, hitting someone with a padlock, and trying to stab a friend.
"So he's a pathological, damaged camper. A problem. Then they talk about my tone 'is a little tough.' Give me a break," he continued. "Go back to Carson. So he went after his mother — went after his mother! Think of this. He went after his mother with a hammer at a fairly young age, fourteen [or] fifteen years old. I didn't. I didn't."
But at the same time, Trump expressed disbelief at Carson's 50-year-old stories, including that a friend's belt buckle somehow stopped Carson's camping knife from sinking in. Trump reenacted a young Carson in order to mock the stories, and at one point he walked away from the podium to show how ridiculous he felt the stabbing story was.
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The many faces of Donald Trump
TRUMP GOES OFF: Donald gives epic speech raging against Ben Carson in every way imaginable
FORT WORTH, TX - FEBRUARY 26: Republican presidential candidate Donald Trump speaks at a rally at the Fort Worth Convention Center on February 26, 2016 in Fort Worth, Texas. Trump is campaigning in Texas, days ahead of the Super Tuesday primary. (Photo by Tom Pennington/Getty Images)
Republican presidential candidate Donald Trump gestures as he speaks at a campaign rally Friday, Feb. 5, 2016, in Florence, S.C. (AP Photo/John Bazemore)
Republican presidential candidate Donald Trump speaks during a campaign stop Wednesday, Feb. 3, 2016, in Little Rock, Ark. (AP Photo/Tony Gutierrez)
Republican presidential candidate Donald Trump holds up a child he pulled from the crowd as he arrives to speak at a campaign rally in New Orleans, Friday, March 4, 2016. (AP Photo/Gerald Herbert)
TOPSHOT - Republican presidential candidate Donald Trump gestures during a campaign rally in North Charleston, South Carolina, February 19, 2016. / AFP / JIM WATSON (Photo credit should read JIM WATSON/AFP/Getty Images)
Republican presidential candidate businessman Donald Trump gestures during the Republican Presidential Debate, hosted by CNN, at The Venetian Las Vegas on December 15, 2015 in Las Vegas, Nevada. AFP PHOTO/ ROBYN BECK / AFP / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
Republican presidential candidate Donald Trump speaks during a campaign event at Plymouth State University Sunday, Feb. 7, 2016, in Plymouth, N.H. (AP Photo/David Goldman)
Pastor Joshua Nink, right, prays for Republican presidential candidate Donald Trump, as wife, Melania, left, watches after a Sunday service at First Christian Church Sunday, Jan. 31, 2016, in Council Bluffs, Iowa. (AP Photo/Jae C. Hong)
Republican presidential candidate Donald Trump speaks during a campaign rally in North Charleston, South Carolina, February 19, 2016. / AFP / JIM WATSON (Photo credit should read JIM WATSON/AFP/Getty Images)
Republican presidential candidate, businessman Donald Trump blows a kiss after speaking at his caucus night rally, Monday, Feb. 1, 2016, in West Des Moines, Iowa. (AP Photo/Jae C. Hong)
Republican presidential candidate Donald Trump speaks during a campaign rally at the Pensacola Bay Center in Pensacola, Fla., Wednesday, Jan. 13, 2016. (AP Photo/Michael Snyder)
Republican presidential candidate Donald Trump speaks during a campaign stop before next months earliest in the nation presidential primary, Monday, Jan. 11, 2016, in Windham,NH (AP Photo/Jim Cole)
RENO, NV - JANUARY 10: Republican presidential candidate Donald Trump holds a campaign rally at the Reno Event Center on January 10, 2016 in Reno, Nevada. Donald Trump continued to raise doubts Sunday about rival Ted Cruzs eligibility for the presidency, saying Republicans will risk losing a lawsuitand potentially the nations highest officeif they nominate Cruz as their candidate.
(Photos by Charles Ommanney/The Washington Post via Getty Images)
Republican presidential candidate Donald Trump pops through a doorway as he arrives to address a gathering during a campaign stop at a Rotary Club luncheon in Manchester, N.H., Monday, Feb. 8, 2016. (AP Photo/Charles Krupa)
Republican presidential candidate, businessman Donald Trump speaks during a rally at the Greater Columbus Convention Center in Columbus, Ohio, Monday, Nov. 23, 2015. (AP Photo/Paul Vernon)
MESA, AZ - DECEMBER 16: Republican presidential candidate Donald Trump speaks to guest gathered during a campaign event at the International Air Response facility on December 16, 2015 in Mesa, Arizona. Trump is in Arizona the day after the Republican Presidential Debate hosted by CNN in Las Vegas, Nevada. (Photo by Ralph Freso/Getty Images)
Republican Candidate Donald Trump arrives to speaks to the press with Rev. Darrell Scott(R), senior pastor of the New Spirit Revival Center in Cleveland Heights after meetings with prominent African American clerics at Trump Tower in New York November 30 ,2015. AFP PHOTO / TIMOTHY A. CLARY / AFP / TIMOTHY A. CLARY (Photo credit should read TIMOTHY A. CLARY/AFP/Getty Images)
COLUMBUS, OH - NOVEMBER 23: Republican presidential candidate Donald Trump addresses supporters during a campaign rally at the Greater Columbus Convention Center on November 23, 2015 in Columbus, Ohio. Trump spoke about immigration and Obamacare, among other topics, to around 14,000 supporters at the event. (Photo by Ty Wright/Getty Images)
DORAL, FL - OCTOBER 23: Republican presidential candidate Donald J. Trump attends a campaigns rally In Florida at the Trump National Doral on October 23, 2015 in Doral, Florida. Trump leads most polls in the race for the Republican presidential nomination. (Photo by Johnny Louis/FilmMagic)
COLUMBIA, SC - SEPTEMBER 23: Republican presidential candidate Donald Trump leaves a campaign event September 23, 2015 in Columbia, South Carolina. Earlier today, Trump tweeted 'FoxNews has been treating me very unfairly & I have therefore decided that I won't be doing any more Fox shows for the foreseeable future.' (Photo by Sean Rayford/Getty Images)
Republican presidential candidate, businessman Donald Trump reacts during the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum, Wednesday, Sept. 16, 2015, in Simi Valley, Calif. (AP Photo/Mark J. Terrill)
NEW YORK, NY - JULY 22: Donald Trump greets supporters, tourists and the curious after taping an interview with Anderson Cooper at a Trump owned building in mid-town Manhattan on July 22, 2015 in New York City. Trump, who is running for president on a Republican ticket, has come under intensifying criticism for his behavior on the campaign trail. The billionaire's most recent comments on Senator John McCain's war record in Vietnam have resulted in almost universal criticism from fellow candidates. (Photo by Spencer Platt/Getty Images)
Republican presidential candidate Donald Trump leaves for lunch after being summoned for jury duty in New York, Monday, Aug. 17, 2015. Trump was due to report for jury duty Monday in Manhattan. The front-runner said last week before a rally in New Hampshire that he would willingly take a break from the campaign trail to answer the summons. (AP Photo/Seth Wenig)
Donald Trump, president and chief executive of Trump Organization Inc. and 2016 Republican presidential candidate, left, looks on as Sam Clovis, newly appointed national co-chairman of Trumps campaign, speaks during a news conference ahead of a rally at Grand River Center in Dubuque, Iowa, U.S., on Tuesday, Aug. 25, 2015. President Barack Obama's top business ambassador dismissed Trump's call for a wall along the Mexico border, saying the U.S. is focused instead on expanding business with one of its biggest trade partners. Photographer: Daniel Acker/Bloomberg via Getty Images
BILOXI, MS - JANUARY 02: Republican presidential frontrunner Donald Trump pauses with supporters after speaking at the Mississippi Coast Coliseum on January 2, 2016 in Biloxi, Mississippi. Trump, who has strong support from Southern voters, spoke to thousands in the small Mississippi city on the Gulf of Mexico. Trump continues to split the GOP establishment with his populist and controversial views on immigration, muslims and some of his recent comments on women. (Photo by Spencer Platt/Getty Images)
Republican presidential candidate Donald Trump pulls his hair back to show that it is not a toupee while speaking during a rally at the TD Convention Center, Thursday, Aug. 27, 2015, in Greenville, S.C. Trump says his trademark hairdo is for real. He told 1,800 people in South Carolina Thursday: "It's my hair ... I swear." (AP Photo/Richard Shiro)
Supporters reach to great Republican presidential hopeful Donald Trump as he leaves a brief stop to speak to supporters and the media in Laredo, Texas, Thursday, July 23, 2015. Trump predicted Hispanics would love him, because as president he said he'd grab jobs back from overseas and give more opportunity to those who live in the U.S. legally. (AP Photo/LM Otero)
Republican presidential candidate Donald Trump gestures during the first Republican presidential debate at the Quicken Loans Arena Thursday, Aug. 6, 2015, in Cleveland. (AP Photo/John Minchillo)
Republican presidential hopeful Donald Trump remarks about Texas Gov. Rick Perry's glasses at his South Carolina campaign rally in Bluffton, S.C., Tuesday, July 21, 2015. (AP Photo/Stephen B. Morton)
LAREDO, TEXAS - JULY 23: Republican Presidential candidate and business mogul Donald Trump talks to the media at a press conference during his trip to the border on July 23, 2015 in Laredo, Texas. Trump's recent comments, calling some immigrants from Mexico as drug traffickers and rapists, have stirred up reactions on both sides of the aisle. Although fellow Republican presidential candidate Rick Perry has denounced Trump's comments and his campaign in general, U.S. Senator from Texas Ted-Cruz has so far refused to bash his fellow Republican nominee. (Photo by Matthew Busch/Getty Images)
Republican presidential candidate Donald Trump responds to former Arkansas Gov. Mike Huckabee's closing remarks during the first Republican presidential debate at the Quicken Loans Arena Thursday, Aug. 6, 2015, in Cleveland. (AP Photo/Andrew Harnik)
DES MOINES, IA - AUGUST 15: Republican presidential candidate Donald Trump eats a pork chop on a stick and gives a thumbs up sign to fairgoers at the Iowa State Fair on August 15, 2015 in Des Moines, Iowa. Presidential candidates are addressing attendees at the Iowa State Fair on the Des Moines Register Presidential Soapbox stage and touring the fairgrounds. The State Fair runs through August 23. (Photo by Win McNamee/Getty Images)
CLEVELAND, OH - AUGUST 06: Republican presidential candidates Donald Trump (R) and Wisconsin Gov. Scott Walker participate in the first prime-time presidential debate hosted by FOX News and Facebook at the Quicken Loans Arena August 6, 2015 in Cleveland, Ohio. The top-ten GOP candidates were selected to participate in the debate based on their rank in an average of the five most recent national political polls. (Photo by Chip Somodevilla/Getty Images)
OSKALOOSA, IA - JULY 25: Republican presidential hopeful businessman Donald Trump speaks to guests gathered for a rally on July 25, 2015 in Oskaloosa, Iowa. During his last visit to the state Trump sparked controversy when he said Senator John McCain (R-AZ), a former POW, was not a war hero. (Photo by Scott Olson/Getty Images)
Republican presidential candidate, businessman Donald Trump, speaks during the Values Voter Summit, held by the Family Research Council Action, Friday, Sept. 25, 2015, in Washington. ( AP Photo/Jose Luis Magana)
Republican presidential candidate, businessman Donald Trump addresses supporters at a campaign rally, Monday, Dec. 21, 2015, in Grand Rapids, Mich. (AP Photo/Carlos Osorio)
TURNBURRY, SCOTLAND - JUNE 08: Donald Trump Visits Turnberry Golf Club, after its $10 Million refurbishment, on June 8, 2015 in Turnberry, Scotland. (Photo by Ian MacNicol/Getty Images)
DERRY, NH - AUGUST 19: U.S. Republican presidential candidate Donald Trump hugs an American flag as he takes the stage for a town hall meeting in Derry, New Hampshire, August 19, 2015. (Keith Bedford/The Boston Globe via Getty Images)
DES MOINES, IOWA - AUGUST 15: Donald Trump at the Iowa State Fair on August 14, 2015 in Des Moines, Iowa. The Iowa State Fair is one of the oldest and largest agricultural and industrial expositions in the United States. The annual fair, the largest event in Iowa, attracts over a million visitors each year. The fair runs through August 23. After a brief walk around its time for Mr Trump to board his club cart again and leave the fair. (Photos by Charles Ommanney/The Washington Post via Getty Images)
AYR, SCOTLAND - JULY 30: Republican Presidential Candidate Donald Trump visits his Scottish golf course Turnberry 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)
TURNBURRY, SCOTLAND - JUNE 08: Donald Trump visits Turnberry Golf Club, after its $10 Million refurbishment on June 8, 2015 in Turnberry, Scotland. (Photo by Ian MacNicol/Getty Images)
Donald Trump, president and chief executive of Trump Organization Inc. and 2016 U.S. presidential candidate, gestures while speaking during The Family Leadership Summit in Ames, Iowa, U.S., on Saturday, July 18, 2015. The sponsor, The FAMiLY LEADER, is a 'pro-family, pro-marriage, pro-life organization which champions the principle that God is the ultimate leader of the family.' Photographer: Daniel Acker/Bloomberg via Getty Images
PASADENA, CA - JANUARY 16: Donald Trump arrives at NBCUniversal's 2015 Winter TCA Tour - Day 2 at The Langham Huntington Hotel and Spa on January 16, 2015 in Pasadena, California. (Photo by Angela Weiss/Getty Images)
Donald Trump, president and chief executive officer of Trump Organization Inc. and 2016 Republican presidential candidate, pauses while speaking during a news conference at Trump Towers in New York, U.S., on Thursday, Sept. 3, 2015. 'I have signed the pledge,' he said, referring to a document stating that he would not run as an independent candidate in the event that he does not win the Republican nomination. Photographer: Victor J. Blue/Bloomberg via 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. AFP PHOTO/NICHOLAS KAMM (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)
EDISON, NJ - AUGUST 30: A golf fan takes a 'selfie' with presidential candidate Donald Trump during the final round of The Barclays at Plainfield Country Club on August 30, 2015 in Edison, New Jersey. (Photo by Ross Kinnaird/Getty Images)
ABERDEEN, SCOTLAND - JULY 10: Donald Trump plays a round of golf after the opening of The Trump International Golf Links Course on July 10, 2012 in Balmedie, Scotland. The controversial Â£100m course opens to the public on Sunday July 15. Further plans to build hotels and homes on the site have been put on hold until a decision has been made on the building of an offshore windfarm nearby. (Photo by Ian MacNicol/Getty Images)
BIRCH RUN, MI - AUGUST 11: Republican presidential candidate Donald Trump speaks at a press conference before delivering the keynote address at the Genesee and Saginaw Republican Party Lincoln Day Event August 11, 2015 in Birch Run, Michigan. This is Trump's first campaign event since his Republican debate last week. (Photo by Bill Pugliano/Getty Images)
BOCA RATON, FL - APRIL 16: Billionaire Donald Trump speaks to a crowd at the 2011 Palm Beach County Tax Day Tea Party April 16, 2011 at Sanborn Square in Boca Raton, Florida. Trump is considering a bid for the 2012 precidency and is expected to announce his running in the coming weeks. (Photo by John W. Adkisson/Getty Images)
Republican presidential candidate Donald Trump speaks during a campaign rally Saturday, Dec. 5, 2015, in Davenport, Iowa. (AP Photo/Charlie Neibergall)
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"Give me a break, the knife broke," he said. "The belt moves this way. It moves this way! It moves that way! He hits a belt buckle! ... Believe me, it ain't gonna to work. ... But he took the knife, he went like this! And he plunged it into the belt! And amazingly, the belt stayed totally flat and the knife broke."
And Trump discounted how Carson could have had an epiphany had he truly been as violent as his book described.
"He goes into the bathroom for a couple hours, and comes out, and now he's religious. And the people of Iowa believe him," he said. "Give me a break. Give me a break. It doesn't happen that way. It doesn't happen that way."
He added: "Some people might not like it: 'Oh, that's not really nice what you say.' Don't be fools. Don't be fools, OK?"
For its part, Carson's campaign fired back after Trump's initial "child molester" comparison by dismissing the idea that its candidate has some kind of incurable disease. His campaign also pointed to his recent rise in the polls to explain why Trump started lashing out at Carson: