40 Under 40: Ones to Watch

This is no runners-up list—we're watching these 12 high-flying individuals closely, and you ought to be, too. They come from the worlds of finance, tech, energy, politics, and even sports. Meet our 2013 Ones to Watch.

Tom Cotton

40u40 ones to watch tom cotton
  • Age: 36
  • Title: U.S. Congressman, Arkansas

Try to imagine a better political resume: a Harvard-trained lawyer, decorated veteran of the wars in Iraq and Afghanistan, and McKinsey consultant who left all that behind to go back to work on the family cattle farm. That background helps explain how this conservative Republican has rocketed onto the national political stage less than a year into his freshman term in the U.S. House — and why he's already jumped into the race for a Senate seat against a two-term incumbent Democrat. Cotton has a good chance to win. He's media-friendly and a fundraising powerhouse, traits that have earned him establishment support as he keeps the faith among right-wing activists. -Tory Newmyer

  @FortuneMagazine - Last updated September 19 2013 07:26 AM ET
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40 Under 40

Our 2013 edition of the list features young hotshots who are rocking businesses as diverse as air travel, natural gas, and genetic coding, as well as—if you can believe it— government.

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