June 7, 2021 6:15 pm What Is Critical Race Theory? There’s a political firestorm brewing in Loudoun County Schools over whether “critical race theory” should be taught in the classroom. News4’s Pat Muse explains the theory and the controversy behind it. Local 1:44 Workers put up fences, staging for Kamala Harris rally outside White House 2:15 DC voters cast their ballots as early voting starts 2:24 Katie Ledecky shares swimming journey with alma mater, talks life after Olympics 2:07 Why does the sky look bluer in the fall? 1:37 Memorial held for DC woman year after disappearance