Republican presidential candidate Dr. Ben Carsoncontinued to defend his recollection of his past on NBC's "Meet the Press" amid mounting questions about biographical discrepancies.
Carson brushed off criticism over a piece in the Wall Street Journal which said that after dozens of interviews with classmates, nobody remembered his role in sheltering students during race riots at his high school.
"Why would they know about that, unless they were one of those students," Carson told NBC's Chris
Click through images of Ben Carson on the campaign trail:
Ben Carson on the campaign trail
Dr. Ben Carson brushes off more controversy
MT. AYR, IA - JANUARY 22 : Republican presidential candidate Ben Carson is introduced during his 'Trust in God Townhall' campaign stop January 22, 2016 in Mt. Ayr, Iowa. Carson, who is seeking the nomination from the Republican Party is on the presidential campaign trail across Iowa ahead of the Iowa Caucus taking place February 1. (Photo by Joshua Lott/Getty Images)
Ben Carson, 2016 Republican presidential candidate, speaks during a Liberty University Convocation in Lynchburg, Virginia, U.S., on Wednesday, Nov. 11, 2015. As retired neurosurgeon Carson has risen in the polls, media reports have revisited his accounts of acts of violence as a child, a key part of the redemption story he discusses on the campaign trail. Photographer: Andrew Harrer/Bloomberg via Getty Images
PALM BEACH GARDENS, FL - NOVEMBER 06: Republican presidential candidate Ben Carson speaks to the media before speaking at a gala for the Black Republican Caucus of South Florida at PGA National Resort on November 6, 2015 in Palm Beach, Florida. Carson has come under media scrutiny for possibly exaggerating his background and other statements he has made recently. (Photo by Joe Raedle/Getty Images)
DES MOINES, IA - AUGUST 16: Republican presidential hopeful Ben Carson (L) eats a piece of pizza while touring the Iowa State Fair on August 16, 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 Justin Sullivan/Getty Images)
LAKEWOOD, CO - OCTOBER 29: Republican presidential candidate Ben Carson speaks during a news conference before a campaign event at Colorado Christian University on October 29, 2015 in Lakewood, Colorado. Ben Carson was back on the campaign trail a day after the third republican debate held at the University of Colorado Boulder. (Photo by Justin Sullivan/Getty Images)
WASHINGTON, DC - SEPTEMBER 25: Scenes around the the Value Voters Summit on September 25, 2015 in Washington DC. Republican presidential candidate Ben Carson takes the stage at the event. Dr Carson speaks to the media after the speach. (Photos by Charles Ommanney/The Washington Post via Getty Images)
Attendees wait for Ben Carson, 2016 Republican presidential candidate, not pictured, to arrive during a campaign stop at the birthplace of the Michigan Republican Party in Jackson, Michigan, U.S., on Wednesday, Sept. 23, 2015. Carson, the third candidate in the Republican race to have never held elected office, saw his numbers drop following the debate last week. Photographer: Luke Sharrett/Bloomberg via Getty Images
Ben Carson, 2016 Republican presidential candidate, listens as he attends a service at Maple Street Missionary Baptist Church in Des Moines, Iowa, U.S., on Sunday, Aug. 16, 2015. Carson will be speaking at the Iowa State Fair, which is expected to host 18 presidential candidates and runs until Aug. 23. Photographer: Daniel Acker/Bloomberg via Getty Images
CLEVELAND, OH - AUGUST 06: Republican presidential candidate Ben Carson participates 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)
Ben Carson, 2016 Republican presidential candidate, eats a slice of pizza as he tours the Iowa State Fair in Des Moines, Iowa, U.S., on Sunday, Aug. 16, 2015. In a Sunday interview with Fox News, Carson doubled down on his assertion that a speech given by President Barack Obama intended to sell the American public on his nuclear deal with Iran contained 'coded innuendos employing standard anti-Semitic themes.' Photographer: Daniel Acker/Bloomberg via Getty Images
However, the leading GOP candidate did admit that his timeline about meeting General William Westmoreland on Memorial Day in 1969 and subsequently being offered a scholarship to West Point could be wrong.
"Well I know he [Westmoreland] was there in Detroit ... You know it may not have been Memorial Day. But it was sometime during the time that I was the City Executive Officer."
Another Carson anecdote -- featured in his 1990 autobiography, "Gifted Hands" -- recounts an issue with an exam while he was at Yale.
Some have suggested that his brother, Curtis Carson, would be a logical suggestion to confirm, at least, Carson's childhood anger.
However, Carson said, "My brother's not interested in talking to the media. And a number of other people aren't either, that I've talked to."
When asked about whether he was ready for the intense scrutiny and vetting of a presidential campaign, Carson said he was but pushed back on whether what he is experiencing is fair.
"I have always said that I expect to be vetted, but being vetted and what is going on with me -- 'You said this thirty years ago, you said this 20 years ago, this didn't exist' -- you know, I have not seen that with anyone else. If you can show me where that's happened with someone else I will take that statement back," he said.
Carson said this kind of scrutiny is born out of the "secular progressive movement in this country."
He said he is a threat to that because he and his campaign are attracting a "a great diversity of people and it worries them."
While the chattering class may see these questions as a problem for the campaign, Carson credits them for contributing to a major fundraising haul this week. Yesterday, the campaign said he's raised $3.5 million in the past week. In a tweet, Carson attributed this cash infusion to "media bias."