National Edition News cover for April 30, 2015 - Riots threaten O’Malley’s bid for White House: Former Maryland Gov. Martin O'Malley, center, meets with residents Tuesday, April 28, 2015, in Baltimore. Baltimore was a city on edge Tuesday as hundreds of National Guardsmen patrolled the streets against unrest for the first time since 1968, hoping to prevent another outbreak of rioting. (AP Photo/Matt Rourke)
Featured Photo Galleries
