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Aaron Mendelson works on KPCC's data journalism and interactive projects.
At KPCC, he has used data to shine a light on the avalanche of outside money in local politics, spiking firearms sales, Los Angeles' bicycle infrastructure, and police militarization. He helped build a unique database on officer-involved shootings in Los Angeles County for KPCC's Officer Involved project.
Aaron joined KPCC in 2014 and became a member of the station's investigative team in 2017
He holds a master's degree from the UC Berkeley Graduate School of Journalism. Prior to joining KPCC, his work had been published and aired by Reuters, Marketplace, KQED and Mother Jones. He got his start in journalism at KFAI in Minneapolis.
Stories by Aaron Mendelson
In June's primary election, mail-in ballots without signatures or those submitted by people not registered to vote were among those tossed.
Nearly 200 law enforcement robots and related parts have been transferred to California agencies from the military, including to many smaller police forces.
Almost 20 businesses got licenses to sell alcohol in Highland Park in the past 3 years. Some residents worry that's too many.
The Sand Fire ignited on the afternoon of July 22 and smoke from the fire quickly spread across the Los Angeles Basin and into Orange County. Since then, winds have shifted.
Police officers across Southern California are wearing black bands across their badges to mourn the deaths of five of their colleagues in Dallas.
The L.A. County Sheriff's Department will no longer report to the public whether individual shootings are judged in or out of policy, following union objections.
Turnout estimates climbed in the weeks since June 7, as vote by mail ballots and provisional ballots were added. Early counts showed turnout just below 30 percent in L.A.
After three weeks registrar Neal Kelley says his office has finished counting votes. The official turnout was 49.6 percent of registered voters.
The warning level on AQMD's air quality index is red. That means it's unhealthy for everyone — not just people with respiratory problems.
When two fires broke out in the hills above Duarte and Azusa, they quickly forced evacuations and road closures. Smoke from the fires is visible around the region. This animation shows where smoke could travel, according to United States Forest Service projections
More than $1.4 million in political spending from backers of charter school reform resulted in a stalemate. Considerably more spending is possible before November's general election.
Running calculations under a state-mandated "stress test," the Metropolitan Water District says it's got available supplies to withstand three more years of drought.
Semi-final official returns show an L.A. County turnout of 29.9 percent, up from the presidential primary four years ago, but far below the 55.2 percent of eligible voters who turned out in 2008.
Beyond the presidential contests, there are important races that Southern California voters had to consider. We're tracking the Senate, House, statehouse races and more here.
If past elections are any guide, turnout for the next week's presidential primary election may be underwhelming in Los Angeles County, even with a heated Democratic campaign.