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Jeff Larson

Reporter

Message Machine: Tracking Political Targeting

Political campaigns send many variations of each email to supporters. We've been collecting emails from political campaigns and tracking the variations. You can be a part of this project by forwarding political emails you get to emails@messagemachine.propublica.org.

Message Machine Starts Providing Answers

Political campaigns use massive databases to target their constituents. ProPublica's Message Machine is beginning to find some answers on how they do it.

How ProPublica's Message Machine Reverse Engineers Political Microtargeting

How the message machine works.

Campaign Email Overload? We've Got a Website for That

The political conventions are upon us, and with them a new flood of campaign emails. ProPublica debuts a new campaign emails Tumblr.

Explore Hundreds of Campaign Emails in the Message Machine

Today we're opening up the political campaign emails we have collected from our readers.

Message Machine Update: A Cameo by Sheldon Adelson

On Saturday the Obama campaign sent an email to supporters mentioning Sheldon Adelson, the billionaire casino mogul who has donated millions to Republican super PACs.

Message Machine: Dinner at Sarah Jessica Parker’s House

Last Monday, the Obama campaign sent out an email about a dinner with the President at Sarah Jessica Parker's house this coming Thursday. We received 7 versions of it.

North Dakota Spills

With the help of hydraulic fracturing, energy companies have doubled North Dakota's oil production in the past two years. But the oil boom has come at a cost: these companies are spilling and leaking oil and wastewater at an increasing rate.

Help Us Track How Politicians Target You

Political campaigns are using increasingly sophisticated methods to target messages to voters, methods that are not at all transparent. We need your help to uncover and understand them.

Announcing Simpler Tiles

Today, we're releasing Ruby bindings for Simple Tiles, so you can generate tiles from Ruby.

When Are 190 Emails Like Six Emails?

Reverse-Engineering Obama’s Message Machine

How different are a campaign's emails to different voters? President Obama's re-election campaign tried at least six different messages sent on behalf of campaign deputy manager Julianna Smoot in an email blast last week.

Message Machine: Reverse Engineering an Obama Email Campaign

Campaigns are increasingly tailoring their messages -- and their funding requests -- using massive databases of personal information about potential voters. Here are six variations of a Thursday night message from the Obama campaign, based on emails submitted by 190 recipients across the country.

Anatomy of a Stepper Graphic

A small library for stepper graphics.

Answering Your Questions on Our California Redistricting Story

We answer your questions about our California redistricting story.

Map: A Tale of Two Districts

How Democrats Fooled California’s Redistricting Commission

To get the districts they wanted, Democrats organized groups that said they represented communities, but really represented the party.

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