ProPublica announced today that Alec MacGillis, a staff writer at Slate, will be joining its staff on April 13 as a political reporter.

MacGillis previously spent three years covering national politics for The New Republic and five years as a national reporter for The Washington Post, where he was part of the team whose coverage of the Virginia Tech shooting won the 2008 Pulitzer Prize for breaking news. He was also a metro reporter for five years at the Baltimore Sun, where he and collaborators were Pulitzer finalists for their coverage of the Beltway sniper.

"I'm grateful for the chance to join such an accomplished team of journalists in their mission to find the important stories left uncovered in our fragmented media landscape," MacGillis said.

A resident of Baltimore, MacGillis is also the author of "The Cynic," a 2014 biography of Senator Mitch McConnell.

“Alec’s history of insightful, award-winning reporting speaks for itself,” said Robin Fields, ProPublica’s managing editor. “He’s just the person we’ve been looking for to round out our political team.”