Four years after a Massachusetts crime lab chemist confessed to tainting evidence, more than 20,000 defendants still don’t know if their drug convictions will stand.

Federal officials are taking a close look at a sales practice that allows advertisers on the social network to include or exclude people who have an “affinity” with specific ethnic groups.

Early voting is up this year among Latinos. Heavily Latino precincts had later closing times on Election Day four years ago, an indicator of long waits.

Seeing America Through the Losing Candidates’ Map

Podcast: ProPublica and Univision reporters share which barriers to the ballot they’re seeing during this election.

If Clinton is elected she could face a fight with her party’s most liberal wing over potential top hires like Tom Nides, who has spent his career straddling government and high finance.

Local defense bar explores options after ProPublica investigation showed that police and prosecutors continue to use flawed drug tests in sending thousands to jail.

Powerful software is solving more crimes and raising new questions about due process.

Secretaries of state, who oversee ballot measures on topics from gun control to the minimum wage, are increasingly courted by interest groups and industries with billions of dollars at stake.

At a City Council hearing, police brass show flexibility on controversial tool for quality of life actions.

Every election season, cries that voter fraud will threaten the legitimacy of American democracy can be heard throughout the country. Critics say these claims are exaggerated and backed up by scant evidence. But dismissing voter fraud entirely overlooks the fact that that fraud does happen – rarely.

Four members of the Congressional Black Caucus wrote Facebook's Mark Zuckerberg telling him that the company should stop allowing advertisers to exclude people by race.

A video shows a healthy 15-year-old going into her bedroom at a for-profit AdvoServ facility. Thirty-two minutes later, she had no pulse. Nobody’s saying what happened.