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Photo: Mark Lennihan / AP

During the election, Facebook broke down the U.S. into 14 political segments, spanning from left-leaning youth to pro-gun rights Tea Partiers, and gave the information to political advertisers to help them better target their ads, according to a sales pitch obtained by Alex Kantrowitz of BuzzFeed News. There were also broader buckets ranging from "very liberal" to "very conservative."

Why it matters: It's not clear how this particular pitch played out with advertisers. But more broadly, many Americans are just now getting a behind the scenes look at how online political advertising works.

Facebook told Buzzfeed: "We typically help marketers across all verticals understand audiences this way, and we briefly used this framework to help inform how a small number of marketers built their campaigns." The spokesperson added that the particular pitch was "no longer avalable."

Go deeper

Tony Hsieh, longtime Zappos CEO, dies at 46

Tony Hsieh. Photo: FilmMagic/FilmMagic

Tony Hsieh, the longtime ex-chief executive of Zappos, died on Friday after being injured in a house fire, his lawyer told the Las Vegas Review-Journal. He was 46.

The big picture: Hsieh was known for his unique approach to management, and following the 2008 recession his ongoing investment and efforts to revitalize the downtown Las Vegas area.

Dan Primack, author of Pro Rata
5 hours ago - Economy & Business

The unicorn stampede is coming

Illustration: Annelise Capossela/Axios

Airbnb and DoorDash plan to go public in the next few weeks, capping off a very busy year for IPOs.

What's next: You ain't seen nothing yet.

19 hours ago - World

Maximum pressure campaign escalates with Fakhrizadeh killing

Photo: Fars News Agency via AP

The assassination of Mohsen Fakhrizadeh, the architect of Iran’s military nuclear program, is a new height in the maximum pressure campaign led by the Trump administration and the Netanyahu government against Iran.

Why it matters: It exceeds the capture of the Iranian nuclear archives by the Mossad, and the sabotage in the advanced centrifuge facility in Natanz.