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

What creates super successful siblings?

By
Patricia Sellers
Patricia Sellers
Down Arrow Button Icon
By
Patricia Sellers
Patricia Sellers
Down Arrow Button Icon
July 15, 2015, 10:55 AM ET
Video Poster

Leadership talent derives from a mix of nature and nurture. And when you meet siblings who are successful at the highest levels,—like Ari and Rahm Emanuel, whom Fortune Assistant Managing Editor Adam Lashinsky interviewed on stage at Fortune Brainstorm Tech this week—you have to wonder how the DNA and the family upbringing work their magic in combination.

Ari, the youngest of three whip-smart Emanuel brothers raised in the Chicago suburbs, is a well-known talent agent and the co-CEO of William Morris Endeavor. Rahm is the mayor of Chicago. When the Emanuel brothers took the stage Monday evening in Aspen, we asked communications expert Noah Zandan to watch and analyze their performance.

Zandan is the co-founder and CEO of Quantified Communications, an analytics company that measures and trains C-suite executives to communicate effectively. Using Quantified Communications’ technology platform, which can analyze language and speech patterns and benchmark speakers such as the Emanuel brothers against one another and against best-in-class communicators, Zandan says he learned four things.

The Emanuel brothers’ authentic communication style contributes to their success.

The language of success is authenticity, according to Quantified Communications’ research. Ari and Rahm Emanuel use significantly more authentic language than the average interviewee. For example, in response to a question regarding competition from William Morris rival CAA, Ari spoke with great candor:

Ari: “They’re still stuck in the 90s… I don’t even think about ’em. To be candid.”

Adam (moderator): “You don’t… You don’t think about CAA?”

Ari: “No. I mean they’re… They’re a third of our size. I compete with them on three things in my life. I kinda think about them.” (Laughter)

 

You don’t always have to be serious to be successful.

The Emanuels use abnormal levels of informal, engaging language. You don’t feel like they’re acting or performing on stage. Compared to the average informal interview, the brothers used 4.6x more fun, friendly and informal language. They tell personal stories, and they banter. For instance, when speaking about his accomplishment in improving early childhood education in Chicago, Rahm said:

“Thank you for that because that’s the first time Ari has ever applauded for me.” (Crowd laughter).

Ari replied: “I did it [clapped] before! I clapped before when everybody else clapped!”

Different professions require different communication skills.

Ari uses 71% more credibility building language than the average speaker. But in his role as a CEO (yes, even in Hollywood), he has to come across humble about his accomplishments and measured in the way he talks about the future. On the other hand, Rahm, as a political leader, relies on exuding confidence to the public. Rahm speaks with 52% more confidence than his brother.

The Emanuel brothers are more fun than the Bush brothers.

When the Emanuels were asked whether they had the guts to take on George and Jeb Bush in a cage match, Ari gamely replied: “That’s not risk. That’s pure reward.”

It was impossible to find apples-to-apples comparisons of interviews with the Emanuel brothers and the Bush brothers. But in studying various interviews with both sets of renowned brothers, Quantified Communications found that Ari and Rahm use twice as much fun and friendly language than the Bush brothers.

Well, you could say that this has more to do with party affiliations than anything nurture or nature could affect.

[fortune-brightcove videoid=4353103060001]

About the Author
By Patricia Sellers
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
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
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
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Leadership

Gen Z are already more bullish than millennials about early retirement—and many think they can quit work for good with just $500,000
SuccessRetirement
Gen Z are already more bullish than millennials about early retirement—and many think they can quit work for good with just $500,000
By Orianna Rosa RoyleApril 4, 2026
35 minutes ago
stu
Personal FinanceRetirement
Meet a 74-year-old New Yorker who unretired to become an Uber driver: ‘I’m amazed at what people will tell me’
By Cathy Bussewitz and The Associated PressApril 4, 2026
3 hours ago
Microsoft just turned 51. Here’s a look at an iconic 1978 photo of its first employees and where they are now
Big TechMicrosoft
Microsoft just turned 51. Here’s a look at an iconic 1978 photo of its first employees and where they are now
By Marco Quiroz-GutierrezApril 4, 2026
8 hours ago
stressed student
Personal FinanceColleges and Universities
College grads in ‘AI-proof’ careers like psychology and education are seeing negative returns on their degrees
By Jake AngeloApril 4, 2026
8 hours ago
Delta CEO Ed Bastian
Successsuccess
How Delta uses Tom Brady to train its 100,000 workforce on leadership and a winner’s mindset
By Emma BurleighApril 4, 2026
9 hours ago
Scott Kupor sits at a table gesturing with both hands.
PoliticsLabor
The Trump administration is blurring the public and private sector workforce, and OPM director Scott Kupor won’t rule out conflict of interest risks
By Sasha RogelbergApril 4, 2026
9 hours ago

Most Popular

Google CEO Sundar Pichai says we’re just a decade away from a new normal of extraterrestrial data centers
Innovation
Google CEO Sundar Pichai says we’re just a decade away from a new normal of extraterrestrial data centers
By Fortune EditorsApril 3, 2026
1 day ago
Gen Z fled San Francisco for Texas and Florida. Now they’re turning ‘welcomer cities’ into the next big tech towns
Real Estate
Gen Z fled San Francisco for Texas and Florida. Now they’re turning ‘welcomer cities’ into the next big tech towns
By Fortune EditorsApril 2, 2026
2 days ago
The Walmart billionaires next door: Quiet backlash is brewing against the heirs who remade the retailer’s hometown
Magazine
The Walmart billionaires next door: Quiet backlash is brewing against the heirs who remade the retailer’s hometown
By Fortune EditorsApril 3, 2026
2 days ago
Current price of oil as of April 3, 2026
Personal Finance
Current price of oil as of April 3, 2026
By Fortune EditorsApril 3, 2026
1 day ago
The World Cup is supposed to be an economic windfall. But 'you're seeing a number of headwinds' now
North America
The World Cup is supposed to be an economic windfall. But 'you're seeing a number of headwinds' now
By Fortune EditorsApril 4, 2026
7 hours ago
Current price of silver as of Friday, April 3, 2026
Personal Finance
Current price of silver as of Friday, April 3, 2026
By Fortune EditorsApril 3, 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.