• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia

Trendingnow

1

Pentagon accuses Alibaba, Baidu and BYD, three of China's biggest companies, of supporting the Chinese military

2

'We are rapidly running out of time': Watchdog sounds Social Security alarm after 22% cut confirmed for 2032

3

Costco CEO Ron Vachris rose from forklift driver to the C-suite without a college degree: ‘Don’t chase a title’ is the career advice that got him there

1

Pentagon accuses Alibaba, Baidu and BYD, three of China's biggest companies, of supporting the Chinese military

2

'We are rapidly running out of time': Watchdog sounds Social Security alarm after 22% cut confirmed for 2032

3

Costco CEO Ron Vachris rose from forklift driver to the C-suite without a college degree: ‘Don’t chase a title’ is the career advice that got him there
Leadershipdiversity and inclusion

In billionaire brawl over DEI, Bill Ackman knocks Mark Cuban’s rebuttal to Elon Musk: ‘I fell for the same trap’ 

Steve Mollman
By
Steve Mollman
Steve Mollman
Contributors Editor
Down Arrow Button Icon
Steve Mollman
By
Steve Mollman
Steve Mollman
Contributors Editor
Down Arrow Button Icon
January 4, 2024, 6:19 PM ET
Bill Ackman, CEO of Pershing Square Capital Management, has, like Tesla CEO Elon Musk, made himself heard on DEI.
Bill Ackman, CEO of Pershing Square Capital Management, has, like Tesla CEO Elon Musk, made himself heard on DEI.Jeenah Moon—Bloomberg/Getty Images

Billionaires are duking it out on X over diversity, equity, and inclusion (DEI) efforts.

On Wednesday, Tesla CEO Elon Musk, the world’s richest man, wrote: “DEI is just another word for racism. Shame on anyone who uses it.”

That was in support of a long post by hedge fund billionaire Bill Ackman on the reasons he pressured Harvard president Claudine Gay to resign, as she announced she would earlier this week. Ackman, CEO of Pershing Square Capital Management, is a Harvard alum and prominent donor to the university. 

Gay received intense criticism last month for her answers to lawmakers over anti-Semitism on campus following the Oct. 7 attack by Hamas on Israel. Specifically, she failed to condemn calls for genocide against Jews as a violation of university policy. That was followed by allegations by conservative activists that she had committed plagiarism in her academic work, and suggestions that she had been unqualified for the role of president, which she assumed last July, in the first place.

“It was a thinly veiled exercise in race & gender when they selected Claudine Gay,” entrepreneur and GOP presidential candidate Vivek Ramaswamy, a Harvard alum, posted to X on Tuesday. “Here’s a radical idea for the future: select leadership based on *merit.*”

When an X user responded to Musk by questioning whether DEI qualifies as racism, Musk countered: “Discrimination on the basis of race, which DEI does, is literally the definition of racism.” 

At this point, another billionaire weighed in: Mark Cuban, the Shark Tank star and Dallas Mavericks owner (last month he sold his majority stake in the NBA team to families linked to Sheldon Adelson, the late Las Vegas casino magnate). 

“Let me help you out and give you my thoughts on DEI,” he responded to Musk. 

“Good businesses look where others don’t, to find the employees that will put your business in the best possible position to succeed,” he continued. “You may not agree, but I take it as a given that there are people of various races, ethnicities, orientation, etc., that are regularly excluded from hiring consideration. By extending our hiring search to include them, we can find people that are more qualified. The loss of DEI-phobic companies is my gain.”

Ackman responded to Cuban, writing: 

“That’s exactly what I thought until I did the work. I encourage you to do the same and revert. DEI is not about diversity, equity, or inclusion. Trust me. I fell for the same trap you did.”

Musk replied to Ackman with “Yup.” 

Read More: Bill Ackman’s wife is accused of plagiarism after her husband crusaded against Harvard’s president over the same problem

Musk, who owns X, has been a frequent critic of DEI in recent weeks. In mid-December, he wrote: “‘Diversity, Equity and Inclusion’ are propaganda words for racism, sexism and other -isms. This is just as morally wrong as any other racism and sexism. Changing the target class doesn’t make it right!”

(The U.S. Equal Employment Opportunity Commission filed a lawsuit against Tesla in September alleging it failed to probe complaints of racist conduct and has fired or retaliated against employees who reported harassment. In other such cases, Tesla has said that it doesn’t tolerate discrimination and takes such complaints seriously.)

Ackman, in a similar vein, wrote on Wednesday: “DEI is racist because reverse racism is racism, even if it is against white people (and it is remarkable that I even need to point this out).”

In her resignation note, Gay wrote, “It has been distressing to have doubt cast on my commitments to confronting hate and to upholding scholarly rigor—two bedrock values that are fundamental to who I am—and frightening to be subjected to personal attacks and threats fueled by racial animus.”

About the Author
Steve Mollman
By Steve MollmanContributors Editor
LinkedIn iconTwitter icon

Steve Mollman is a contributors editor at Fortune.

See full bioRight Arrow Button Icon

Latest in Leadership

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Leadership

How the World Cup is a high-stakes stage for Big Tech’s AI push
NewslettersCIO Intelligence
How the World Cup is a high-stakes stage for Big Tech’s AI push
By John KellJune 10, 2026
4 hours ago
Anthropic accused of ‘secret sabotage’ as Claude Fable 5 silently limits capabilities for AI researchers and developers
AIAnthropic
Anthropic accused of ‘secret sabotage’ as Claude Fable 5 silently limits capabilities for AI researchers and developers
By Sharon GoldmanJune 10, 2026
5 hours ago
A 5-week course and a guaranteed job: Meta commits $115 million to solve the skilled-trades shortage stalling its AI buildout
Future of WorkMeta
A 5-week course and a guaranteed job: Meta commits $115 million to solve the skilled-trades shortage stalling its AI buildout
By Jacqueline MunisJune 10, 2026
5 hours ago
Xbox CEO Asha Sharma
SuccessCareers
Xbox’s CEO spent her early career taking out trash and selling coupon books—she says the secret to her rise was never obsessing over a dream career
By Preston ForeJune 10, 2026
8 hours ago
Boris Cherny, Head of Claude Code
SuccessHiring
The architect behind Claude Code reveals the three things Anthropic looks for in a good hire—and why people with low ego are a must
By Emma BurleighJune 10, 2026
8 hours ago
Meryl Streep says she was ‘ready to retire’ when the call for ‘Devil Wears Prada’ came—so she demanded they double her salary or nothing
SuccessThe Promotion Playbook
Meryl Streep says she was ‘ready to retire’ when the call for ‘Devil Wears Prada’ came—so she demanded they double her salary or nothing
By Orianna Rosa RoyleJune 10, 2026
9 hours ago

Most Popular

Pentagon accuses Alibaba, Baidu and BYD, three of China's biggest companies, of supporting the Chinese military
Asia
Pentagon accuses Alibaba, Baidu and BYD, three of China's biggest companies, of supporting the Chinese military
By Kate O'Keeffe and BloombergJune 8, 2026
2 days ago
'We are rapidly running out of time': Watchdog sounds Social Security alarm after 22% cut confirmed for 2032
Economy
'We are rapidly running out of time': Watchdog sounds Social Security alarm after 22% cut confirmed for 2032
By Nick LichtenbergJune 9, 2026
1 day ago
Costco CEO Ron Vachris rose from forklift driver to the C-suite without a college degree: ‘Don’t chase a title’ is the career advice that got him there
Success
Costco CEO Ron Vachris rose from forklift driver to the C-suite without a college degree: ‘Don’t chase a title’ is the career advice that got him there
By Preston ForeJune 8, 2026
2 days ago
Current price of oil as of June 9, 2026
Personal Finance
Current price of oil as of June 9, 2026
By Joseph HostetlerJune 9, 2026
1 day ago
Wall Street dumped nearly $1 trillion in tech stocks by midday—then clawed it back and bought peanut butter and paint
Investing
Wall Street dumped nearly $1 trillion in tech stocks by midday—then clawed it back and bought peanut butter and paint
By Eva RoytburgJune 9, 2026
1 day ago
Current price of silver as of Tuesday, June 9, 2026
Personal Finance
Current price of silver as of Tuesday, June 9, 2026
By Joseph HostetlerJune 9, 2026
1 day ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.