What we know about the killing of Alex Pretti, and what this incident tells us about the debate around gun rights.

An exclusive investigation from The Washington Post has found that America’s wealthiest people are spending unprecedented amounts of money on U.S. politics. How is that reshaping American democracy?

The Trump administration is sending Border Patrol agents right into the heart of some of America’s biggest cities. We investigate how their tactics are shaping immigration operations from Los Angeles to Chicago to, as of this week, New Orleans.