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Live: Fact-checking Kamala Harris and Donald Trump’s first 2024 presidential debate

Debates Elections National
Donald Trump hands out with Kamala Harris, 9-10-2024
Former President Donald Trump and Vice President Kamala Harris debate Sept. 10, 2024, at the National Constitution Center in Philadelphia. (AP)
By PolitiFact Staff
September 10, 2024

PolitiFact live fact-checked the first 2024 presidential debate Sept. 10 in Philadelphia between Vice President Kamala Harris and former President Donald Trump. Read our roundup of fact-checks from the Harris-Trump debate here.

Live presidential debate fact-checks


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See links in live blog posts.

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More by PolitiFact Staff
Donald Trump
stated on December 8, 2021 in an interview with Hugh Hewitt:
Gas prices were “$1.86 when I left” the White House.
False
By PolitiFact Staff • December 8, 2021
Louise Slaughter
stated on September 5, 2017 in a tweet:
Rescinding the Deferred Action for Childhood Arrivals program “will harm our economy.”
True
By PolitiFact Staff • September 10, 2017
Bloggers
stated on March 2, 2017 in a headline:
“Doctors who discovered cancer enzymes in vaccines all found murdered.”
Pants on Fire!
By PolitiFact Staff • April 4, 2017
David Menchetti
stated on November 28, 2016 in testimony before the Illinois House Labor and Commerce Committee:
“The causation standard in Indiana is exactly the same as it is in Illinois.”
True
By PolitiFact Staff • December 19, 2016
Kasim Reed
stated on September 16, 2016 in a White House press conference:
“If you look at any real analysis,” the Trans-Pacific Partnership is “going to generate better-paying jobs that are more stable.”
Half-True
By PolitiFact Staff • September 30, 2016
Kasim Reed
stated on November 17, 2015 in press release:
While the smoking rate nationally has fallen, more than 18 percent of Georgians still light up.  
Mostly True
By PolitiFact Staff • November 30, 2015
NextGen Climate Action Committee
stated on August 8, 2014 in a campaign ad:
Says Rick Scott “is letting Duke (Energy) keep collecting billions” despite troubled power plants.
Half-True
By PolitiFact Staff • August 13, 2014
Georgia Department of Transportation
stated on July 19, 2011 in a press release:
The Northwest Corridor highway project in Cobb and Cherokee counties “is expected to create over 9,700 jobs statewide.”
False
By PolitiFact Staff • August 10, 2011
Republican National Committee
stated on June 5, 2008 in in a news release:
Obama couldn’t have afforded his home without Rezko’s help.
False
By PolitiFact Staff • June 17, 2008

Live: Fact-checking Kamala Harris and Donald Trump’s first 2024 presidential debate

Clear
Sam Altman
stated on September 1, 2026 in a podcast:
“For every 38,000 ChatGPT queries, that is the same amount of water that is used in the production of a single almond in California.”
Mostly False
By Caleb McCullough • September 4, 2026
David Jolly
stated on August 28, 2026 in a news conference:
“70, 80% of people across Florida are saying, ‘Don’t build data centers.'”
Mostly True
By Samantha Putterman • September 2, 2026
Troy Jackson
stated on August 28, 2026 in an X post:
When Sen. Susan Collins “had the chance to actually vote to stop Trump’s tariffs from driving up costs for Maine families and businesses, she voted NO.”
Mostly False
By Amy Sherman • September 2, 2026
Jon Ossoff
stated on August 16, 2026 in a speech:
U.S. Rep. Mike Collins “is literally one of the most active crypto traders in the entire Congress, House or Senate.”
True
By Ben Brasch • September 2, 2026
National Republican Senatorial Committee
stated on July 30, 2026 in video advertisement:
A fatal Ohio crash happened because “Sherrod Brown opened our borders to dangerous illegals.”
False
By Cami Henry-Seymore • September 1, 2026
Social Media
stated on July 20, 2026 in an X post:
North Carolina “processed 1,031,350 duplicate (voter) registrations.”
Half-True
By Paul Specht • August 28, 2026
Byron Donalds
stated on August 23, 2026 in una entrevista:
La “inmigración ilegal desenfrenada” durante la administración Biden es la causa de “un brote de sarampión en ciertas partes del país”.
False
By Samantha Putterman • August 27, 2026
Byron Donalds
stated on August 23, 2026 in an interview:
“Rampant illegal immigration” during the Biden administration is the cause of “a measles outbreak in certain parts of the country.”
False
By Samantha Putterman • August 27, 2026
JD Vance
stated on August 24, 2026 in a speech in Brewer, Maine:
Drug overdoses decreased in Maine because the Trump administration “sealed the border.”
False
By Amy Sherman • August 26, 2026
Social Media
stated on August 23, 2026 in social media posts:
Products marked as beef on U.S. store shelves “might just be from a foreign country that was buying horses from the U.S. government for the slaughter.”
False
By Maria Briceño • August 25, 2026
Jon Husted
stated on August 4, 2026 in a Fox News interview:
When he was a senator, Sherrod Brown “supported Social Security payments for illegals, healthcare for illegals and COVID checks for illegals.”
False
By Cami Henry-Seymore • August 25, 2026
Byron Donalds
stated on August 8, 2026 in an ad:
Florida Democratic gubernatorial candidate David Jolly said he supports “gender-changing surgeries on kids.”
False
By Samantha Putterman • August 19, 2026
Randy Fine
stated on August 16, 2026 in a fundraising email:
New York City Mayor Zohran Mamdani is “requiring ID” to shop at city-run grocery stores.
False
By Amy Sherman • August 18, 2026
Abdul El-Sayed
stated on August 5, 2026 in an interview:
Former U.S. Rep. Mike Rogers “helped to architect the legislation that kicked off the opioid epidemic.”
Mostly False
By Caleb McCullough • August 17, 2026
Alexander Vindman
stated on July 27, 2026 in an X post:
Then-Florida Attorney General Ashley Moody transferred “$10 million in taxpayer money meant for children’s health care to a campaign fund.”
Half-True
By Samantha Putterman • August 13, 2026
Ron Johnson
stated on August 10, 2026 in a Fox News Digital video:
There is “an 82% miscarriage rate with women who got the (COVID-19 vaccine) injection in the first or second trimester.”
False
By Caleb McCullough • August 12, 2026
Donald Trump
stated on August 10, 2026 in remarks in the Oval Office:
When the measles, mumps and rubella vaccines are given together in the combined MMR vaccine, “there could be a possibility they’re quite lethal.”
Pants on Fire!
By Amy Sherman, Madison Czopek • August 11, 2026
Donald Trump
stated on August 10, 2026 in remarks while signing an executive order:
There are vaccines the size of a “bottle of soda … poured into a little child’s body.”
Pants on Fire!
By Grace Abels, Louis Jacobson • August 11, 2026
X posts
stated on August 8, 2026 in X posts:
Michigan Democratic U.S. Senate candidate Abdul El-Sayed “openly calls for Sharia law in America.”
Pants on Fire!
By Amy Sherman • August 10, 2026
Donald Trump
stated on August 4, 2026 in a Fox News interview:
Prices are “all coming down now. The food, the groceries, it’s all coming down.”
Mostly False
By Louis Jacobson • August 10, 2026
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