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Jeff Larson

Jeff Larson is a reporter at ProPublica.

Jeff Larson is a reporter at ProPublica. He is a winner of the Livingston Award for the 2011 series Redistricting: How Powerful Interests are Drawing You Out of a Vote. Jeff's public key.

Buying Your Vote

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.

Buying Your Vote

Explore Hundreds of Campaign Emails in the Message Machine

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

Buying Your Vote

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.

Buying Your Vote

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.

Buying Your Vote

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?

Buying Your Vote

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.